Malevolent Robots

Some of the Robots are evil.

Star Wars

 * Battle Droids
 * Super Battle Droids
 * Droidekas
 * Commando Droids
 * Tactical Droids
 * Vulture Droids
 * Droid Magnaguards
 * Droid Tri-Fighters
 * Dwarf Spider Droids
 * Homing Spider Droids
 * Hailfire Droids
 * Droid Gunships

Transformers

 * Megatron/Galvatron
 * Starscream
 * Soundwave
 * Shockwave
 * Skywarp
 * Thundercracker
 * Laserbeak
 * Ravage
 * Rumble
 * Frenzy
 * Reflector
 * Constructicons: Scrapper, Scavenger, Mixmaster,Bonecrusher, Long Haul and Hook.
 * Thrust
 * Dirge
 * Ramjet
 * Blitzwing
 * Astrotrain
 * Octane
 * Trypticon
 * Stunticons: Motormaster, Breakdown, Wildrider, Dead End and Dragstrip
 * Combaticons: Brawl, Swindle, Blast Off, Vortex and Onslaught
 * Predacons: Razorclaw, Divebomb, Rampage, Headstrong, and Tantrum
 * Terrorcons: Hun-Gurr, Blot, Sinnertwin, Cuthroat, and Rippersnapper
 * Scourge and the Sweeps
 * Cyclonus

Robots the Movie

 * Phineas T. Ratchet
 * Madame Gasket