S

Sandstorm,

Autobot Triple Changer. Transforms into a helicopter or a car.

Sandstorm,

Machine wars. Transforms into a helicopter. He has the same shape as Rotorstorm.

Scattershot,

Autobot. Transforms in some sort of plane. He is the leader of the Technobots.

Scavenger,

Decepticon. Transforms into a construction vehicle. He is one of the Constructicons.

Scavenger,

Predacon. Comes from the Beast Wars. He is a Transmetal Figure, transforms into an ant or a subterrainian drill tank.

Scoop,

Autobot. Transform into a construction vehicle. Holepunch and Tracer transform into his weapons. He is one of the Targetmasters.

Scope Masters/Predators,

Group of Decepticons. The four small ones have a transparent window with a picture, the two larger ones have a visor that enables you to see the pictures of the four small ones. In some countries they are called Scope Masters in other countries Predators. I only know the names of the robots that are in my collection, it is possible that the names of the individual robots also is different and not only the group name (See info). The Scope Masters are:
Skydive (This is his Predator name)
Trap
??????
??????
Scope Master Medium:
Buzzard
Scope Master Large:
Crash

Scorpion,

Autobot. Transforms into a scorpion. He is one of the Pretender Figures.

Scorponok,

Decepticon. He can transform into two different shapes: a scorpion or a base. Scorponok was created by Lord Zarak in The Rebirth, part 2. Zarak himself transforms into Scorponoks head.

Scorponok,

Predacon. Comes from the Beast Wars. Transforms into a scorpion.

Scourge,

Decepticon. Transforms into a spaceship. He is the leader of the Sweeps, as a toy he belongs to the Decepticon Planes. In The Rebirth, part 2 his weapon was modified into an exosuit for Fracas. Due to this proces, Scourge became a Targetmaster. (see also Scourge, Targetmaster)

Scourge,

Decepticon. Transforms into a spaceship. Fracas transforms into his weapon. He is one of the Targetmasters. (See also Scourge)

Scraplets,

Little mechanical creatures that infect Transformers. They are only sensitive to water. They appeared in the US comics #29 and #30. There they had infected the three Decepticon Triple Changers, Blaster and Goldbug. The Throttlebots managed to cure all Transformers using water, with the help of some humans (G.B. Blackrock and Charles Fong).

Scrapper,

Decepticon. Transforms into a construction vehicle. He is the leader of the Constructicons.

Seacons,

Group of six Decepticons. Together they transform into Piranacon. Their names are:
Nautilator
Overbite
Seawing
Skalor
Snaptrap
Tentakil

Searchlight,

Autobot. Transforms into a car. He is one of the Throttlebots.

Seaspray,

Autobot. Transforms into a hoovercraft. He is one of the Mini-Vehicles.

Seaspray,

Autobot from the second generation. Second realese of Seaspray. He now had metallic colors.

Seawatch,

Autobot micromaster. Transforms into a ship. He is a member of the Rescue Patrol.

Seawing,

Decepticon. Transforms into a monster. He is one of the Seacons.

Sharkticons,

Group of robots used for military purposes by the Quintessons. This type of robot has been for sale as a Decepticon named Gnaw.

Shadowpanther,

Predacon. Japanese remake of Cheetor. His colours are now black instead of yellow.

Shockwave,

Decepticon Actionmaster. His weapon transforms into a maintenance droid.

Shockwave,

Decepticon. Transforms into a laser gun. Megatron gave Shockwave the command of Cybertron during his absence.

Shrapnel,

Decepticon. Transforms into a beetle. He is the leader of the Insecticons.

Sideswipe,

Autobot Actionmaster. He has a rocketlauncher which can transforms into his battle armour.

Sideswipe,

Autobot. Transforms into a car. He is one of the Autobot Vehicles.

Sideswipe,

Autobot from the second generation. Transforms into a car. He is one of the Gobots.

Sideswipe,

Autobot from the second generation. Second release of Sideswipe. He is one of the Heroics.

Sidetrack,

Autobot Micromaster. Transforms into a military vehicle. He is a member of the Battle Patrol.

Silencer,

Nebulon. He and Flintlock transform into the weapons of Landfill.

Silverbolt,

Autobot. Transforms into a concorde. He is the leader of the Aerialbots.

Silverbolt,

Maximal. Comes from the Beast Wars. He is a Fuzor, transforms into a creature part eagle, part wolf.

Silverbolt,

Maximal. He is part of the Magnaboss 3-pack together with Prowl and Ironhide. Transforms into an eagle

Singe,

Nebulon. He and Hairsplitter transform into the weapons of Spinister.

Sinnertwin,

Decepticon. Transforms into a monster. He is one of the Terrorcons.

Siren,

Autobot. Transforms into a police car. His head is modified as an exosuit for Quig. Due to this proces, he became a Headmaster.

Sixshot,

Decepticon Six Changer. Just like Quickswitch, he can transform into five different shapes: armored car, animal, plane, gun and rocket launcher.

Sizzle,

Autobot. Transforms into a car. He was released for a second time, with different colors and a different name in the second generation. He is one of the Sparkabots.

Skalor,

Decepticon. Transforms into a monster. He is one of the Seacons.

Skar,

Nebulon (He's a bat). Transforms into the Decepticon engine of Doubledealer.

Skids,

Autobot. Transforms into a van. He is one of the Autobot Vehicles.

Skullcruncher,

Decepticon. Transforms into a crocodile. In The Rebirth, part 2 his head was modified into an exosuit for Grax. Due to this proces, he became a Headmaster.

Skullgrin,

Decepticon. Transforms into a vehicle. He is one of the Pretenders.

Skydive,

Autobot. Transforms into a fighter. He is one of the Aerialbots.

Skydive,

Decepticon. Transforms into a jet. He is one of the Predators.

Skyfall,

Autobot Actionmaster. His weapon transforms into a rhinoceros.

Skyfire,

Autobot. Transforms into a jet. He hasn't been for sale, but a similar Transformer named Jetfire has been (see comment of Jetfire for the explination for this difference). He crashlanded on Earth milions of years ago during a expidition with his friend Starscream, later when he was found again he joined the Autobots (See Fire in the Sky).

Skyhammer,

Autobot. He is one of the Ultra Pretenders.

Sky High,

Autobot micromaster. Transforms into a fighter. He is a member of the Autobot Air Patrol.

Sky High,

Autobot. Transforms into a helicopter. He is one of the Pretenders.

Skyhopper,

Decepticon Micromaster. Transforms into a jet. His base transforms into a helicopter. He is one of the Micromaster Bases.

Skyjack,

Decepticon from the second generation. Transforms into a black/red colored jet. He was also released in black/blue colors. He is one of the Mini-Jets.

Skyjack,

Decepticon from the second generation. Transforms into a black/blue colored jet. He was also released in black/red colors. He is one of the Mini-Jets.

Sky Lynx,

Autobot Space Shuttle. Sky Lynx is without doubt the Autobot with the biggest ego. In the series that come after The Movie he plays a vital role in transporting Autobots across the galaxy.

Skyraiders,

Group Decepticons from the second generation. Second releases of some of the Decepticon Planes. Their names are Ramjet and Starscream.

Skyscorchers,

Group of four Decepticons, their names are:
Hawk
Nightmare
Snipe
Vulcano

Skystalker,

Decepticon Micromaster. This spaceshuttle transforms into a base. The Micromaster that operates this base transforms into a car.

Skywarp,

Decepticon. Transforms into a jet. In the series he has the ability to teleport himself from one location to another. In The Movie he got seriously injured during the attack on Autobot City, Unicron rebuilt him into Scourge or one of the Sweeps. He is one of the Decepticon Planes.

Skywarp,

Machine wars. Transforms into a jet. He has the same shape as Thundercracker.

Slag,

Autobot. Transforms into a Triceratops. He was created by Wheeljack in S.O.S. Dinobots. He is one of the Dinobots.

Slag,

Autobot from the second generation. Second release of Slag. His colours were changed from gray into green.

Slamdance,

Autobot. He is formed by two Mini-Cassettes: Grand Slam and Raindance.

Slapdash,

Autobot. Transforms into a race car. Lube transforms into his engine. He is one of the Powermasters.

Sledge,

Decepticon Micromaster. Transforms together with Hammer into a construction vehicle. He is a member of the Constructor Squad.

Slicer,

Decepticon Actionmaster. His car transforms into his exosuit.

Slide,

Autobot Micromaster. Transforms together with Oiler into a tanker. He is a member of the Metro Squad.

Slingshot,

Autobot. Transforms into a fighter. He is one of the Aerialbots.

Slow Poke,

Autobot micromaster. Transforms into a car. He is a member of the Monster Truck Patrol.

Sludge,

Autobot. Transforms into a Brontosaurus. He was created by Wheeljack in S.O.S. Dinobots. He is one of the Dinobots.

Sludge,

Autobot from the second generation. Second release of Sludge, his colours were different from the first release, I believe his main color was now red.

Slugfest,

Decepticon. Transforms from cassette into an armadillo. He is one of the Spy-Cassettes.

Slugslinger,

Decepticon. Transforms into a jet with two cockpits. In The Rebirth, part 2 his weapon was modified into an exosuit for Caliburst. Due to this proces, he became a Targetmaster.

Smash,

Autobot. Transforms into a car. He is one of the Axelerators.

Smokescreen,

Autobot. Transforms into a car. He is one of the Autobot Vehicles.

Snapdragon,

Decepticon. Transforms into a dragon or a plane. He is a Headmaster Triple Changer. His head is formed by Krunk.

Snapper,

Predacon. Comes from the Beast Wars. Transforms into a turtle.

Snaptrap,

Decepticon. Transforms into a turtle. He is the leader of the Seacons.

Snarl,

Autobot Actionmaster. His weapon transforms into a little dragon.

Snarl,

Autobot. Transforms into a Stegosaurus. He was created by Wheeljack in War Of The Dinobots. He is one of the Dinobots.

Snarl,

Autobot from the second generation. Second release of Snarl, his main color was now red instead of gray.

Snarler,

Decepticon. Transforms into a boar. He is one of the Pretender Beasts.

Snipe,

Decepticon. Transforms into a jet. He is one of the Skyscorchers.

Soundblaster,

Soundwave is destroyed in the Japanese series and rebuilt as Soundblaster.

Soundwave,

Decepticon Actionmaster. His weapon transforms into a bat.

Soundwave,

Decepticon Communicator. He is sold together with Buzzsaw. Transforms into a cassette-player. He is the guardian of the Spy-Cassettes.

Soundwave,

Decepticon from the second generation. Transforms into a car. He is one of the Gobots.

Soundwave,

Machine wars. Transforms into a missile launcher. He has the same shape as Buzzard (=Stalker).

Space Case,

Decepticon from the second generation. Transforms into a green colored jet. He was also released in white/blue colors. He is one of the Mini-Jets.

Space Case,

Decepticon from the second generation. Transforms into a white/blue colored jet. He was also released in green colors. He is one of the Mini-Jets.

Spaceshot,

Decepticon Micromaster. Transforms together with Blackout into a jet. Together they control the Decepticon Anti-Aircraft Base.

Spark,

Autobot from the second generation. Transforms into the front end of a car. The rear end of the car transforms into a missile launcher. He is one of the Obliterators.

Sparkabots,

Group of three autobots. They were all released for a second time, with different colors and different names in the second generation. Please E-mail me if you know their names in the second generation. Their names are:
Fizzle, called Blaze in the second generation.
Guzzle, called ???? in the second generation.
Sizzle, called ???? in the second generation.

Sparkplug,

Sparkplug Witwicky is the father of Spike and Buster.

Sparkstalker,

Decepticon. Transforms into a dragon. He is one of the Firecons.

Spasma,

Decepticon. Transforms into Apeface's head.

Speedstream,

Autobot. Transforms into a car. He is one of the four Aquaspeeders.

Spike,

Spike Witwicky was the first human who made contact with the Autobots. He became close friends with Optimus Prime and Bumblebee. He married with Carly and together they got a son, Daniel. In The Rebirth, part 3 he created Fortress Maximusand made himself the head of Cerebros.

Spinister,

Decepticon. Transform into a jet. Hairsplitter and Singe transform into his weapons. He is one of the Targetmasters.

Splashdown,

Autobot. Transforms into a submarine. He is one of the Pretenders.

Spoilsport,

Nebulon. Transforms into the weapon of Sureshot.

Sports Car Patrol,

Decepticon Micromasters. This is one of the Micromaster Patrols. The group is formed by:
Blackjack
Detour
Hyperdrive
Road Hugger

Springer,

Autobot Triple Changer. Transforms into a helicopter or a car.

Sprocket,

Autobot Actionmaster. Sprockets car can transform into an helicopter.

Spy-Cassettes,

Group of Decepticons that transform into cassettes. They have Soundwave as their guardian. Their names are:
Beastbox
Buzzsaw
Frenzy
Laserbeak
Overkill
Ratbat
Ravage
Rumble
Slugfest
Squawtalk

Squall,

Decepticon. Transforms into a car. He is one of the four Stormtroopers.

Squawkbox,

Decepticon. He is formed by two Spy-Cassettes: Beastbox and Squawktalk.

Squawktalk,

Decepticon. Transforms from cassette into a bird of prey. Together with Beastbox he forms a robot: Squawkbox. He is one of the Spy-Cassettes.

Squeezeplay,

Decepticon. Transforms into a monster. His head is modified as an exosuit for Lokos. Due to this proces, he became a Headmaster.

Stakeout,

Autobot micromaster. Transforms into a police car. He is a member of the Rescue Patrol.

Starscream,

Decepticon Actionmaster. His jet transforms into a battle platform.

Starscream,

Decepticon. Transforms into a jet. He is second in command of the Decepticons in the first two series. Always he tries to take command from Megatron, a few times he succeeds for a short time. In The Movie he throws the badly injured Megatron into outer space and takes command. However Megatron is rebuilt by Unicron into Galvatron. Galvatron returns to Cybertron and arrives there just at the moment of Starscreams coronation and he kills Starscream. However Starscreams spirit is not dead, as a ghost he keeps bothering the galaxy. He is one of the Decepticon Planes.

Starscream,

Decepticon. Transforms into a jet. He is one of the Pretender Classics.

Starscream,

Decepticon from the second generation. Second release of Starscream, but the colors are different. He is one of the Skyraiders.

Staxx,

Decepticon from the second generation. Transforms into a truck. He is one of the Powermasters.

Starscream,

Machine wars. Transforms into a jet. He has the same shape as Crash.

Steeljaw,

Autobot. Transforms from animal into a cassette. He is one of the Mini-Cassettes.

Stone Cruncher,

Decepticon Micromaster. Transforms together with Excavator into a construction vehicle. He is a member of the Constructor Squad.

Stormcloud,

Decepticon Micromaster. Transforms into a fighter. He is a member of the Air Strike Patrol.

Stormtroopers,

Group of four Decepticons. They are all equiped with a waterpistol. Their names are:
Aquanaught
Hydrocruiser
Hydroshark
Squall

Strafe,

Autobot. Transforms in some sort of plane. He is one of the Technobots.

Stranglehold,

Decepticon. Transforms into a rhinoceros. He is one of the Pretender Figures.

Streetwise,

Autobot. Transforms into a police car. He is one of the Protectobots.

Streetwise,

Autobot from the second generation. Second release of Streetwise.

Strike Down,

Autobot Micromaster. Transforms together with Power Run into a hoovercraft. He is a member of the Metro Squad.

Stunticons,

Group of five Decepticons. They were created in The Key To Vector Sigma, part 1. Together they transform into Menasor. Their names are: Breakdown Dead End Dragstrip Motormaster Wildrider

Stylor,

Nebulon. Transforms into Chromedomes head.

Submarauder,

Decepticon. Transforms into a vehicle. He is one of the Pretenders.

Sunbeam,

Nebulon. He and Zig-Zag transform into the weapons of Needlenose.

Sunrunner,

Autobot Micromaster. Transforms into a military plane. He is a member of the Battle Patrol.

Sunstreaker,

Autobot. Transforms into a car. He is one of the Autobot Vehicles.

Superion,

This Transformer is a Gestalt, formed by the five Aerialbots.

Sureshot,

Autobot. Transforms into a car. In The Rebirth, part 2 his weapon was modified into an exosuit for Spoilsport. Due to this proces, he became a Targetmaster.

Sureshot,

Autobot from the second generation. Transforms into a truck. He is equiped with a waterpistol. His face looks a lot like Optimus Primes face, just like Archforces face looks a lot like Megatrons face. In the US he seems even to have been released as Optimus Prime, Hero.

Surge,

Autobot Micromaster. Transforms together with Retro into a construction vehicle. Together they operate the Missile Launcher.

Sweeps,

Group of Decepticons. They all look exactly the same as Scourge. They serve as Galvatrons elite guard. Their leaders are Cyclonus and Scourge. They were created in The Movie by Unicron; he rebuilt many of the Decepticon Planes and Insecticons into the Sweeps.

Swerve,

Autobot. Transforms into a car. He is one of the Mini-Vehicles.

Swindle,

Decepticon. Transforms into a jeep. He is one of the Combaticons.

Swindle,

Decepticon from the second generation. Second release of Swindle.

Swindler,

Autobot micromaster. Transforms into a car. He is a member of the Race Car Patrol.

Swoop,

Autobot. Transforms into a Pteradactylus. He was created by Wheeljack in War Of The Dinobots. He is one of the Dinobots.