Starscream (Transformes Prime)

Starscream was an aerial commander of the Energon Seekers, Cybertron's greatest aerial warriors. His dream was to recover the Matrix of Leadership and become the Supreme who would return the Transformers to the Golden Age, and he saw an opportunity with the rebellious upstart Megatron. A patient and polite schemer, Starscream often wished that Megatron would drop the heroic anti-caste charade and be more honest about his lust for power.

These days, Starscream wishes Megatron would stop obsessing over his lust for power and resents having to work for a madman like him. While he is Megatron's right-hand man, he's constantly looking for a way to become the commander and Megatron knows this - Starscream's extremely volatile personality means he's not adept at hiding his true intentions. Fortunately for Megatron, Starscream is prone to panic, cowardice and grandiloquent gestures, meaning it would take exceptional circumstances for Starscream to actually manage to get behind him to stick the knife in.

Maybe he's a scientist, but we're not sure.