Bumper and Fastback were Autobots serving under Sentinel Prime just prior to the Great War. They were staking out a location for the illegal gladiatorial combat which allowed Megatron to rise to power. They were discovered by Soundwave and soon killed by Megatron. They received a well-attended funeral for their sacrifice.
See entry for Bumper.
Stoker (aka Finklerock)
A mechanoid survivor of a spaceship that crashed on the same planet where Kup was stranded. Kup ignored his pleas for assistance and decapitated him with a club.