Ramjet (SG)

Ramjet is Starscreams first partner who died when both Starscream and Ramjet were captured and being tortured by the autobots. Starscream was forced to join the Evil Autobots or watch his partner die first and he refuses and Ramjet died and starscream was about to be next until Skywarp and Thundercracker busted in the Autobots base and freed starscream but they were to late on saving Ramjet from his execution.

Trivia
Ramjet is a homage to Tailgate from Transformers Prime just because like Arcee cares for Tailgate Starscream cared about Ramjets death.