More Extriverse/own designs!

Info:

• He actually joined the Decepticons because of Skyfire. He was upset the council wouldn't allow him fuel and resources to go find him and announced his friend 'dead' so naturally when he heard of a rebellion he decided to get his sly-ass claws in that gig.
• When he can stop being his usual snide self he's actually very scientifically gifted. The best example of this? He was the anonymous donor who gave Megatron his fusion cannon.
• Pre-war and during it's early stages he sounded more like his TFP self, but repeated attacks and strangulation from Megatron permanently damaged his vocal unit enough that he began to get that infamous screech.
• Can be bitter and petty enough that he messes his own plans and such up, even the ones that might've worked.
• Slightly shorter than Skywarp and Thundercracker.
• At least he got to rule Cybertron for like two weeks.
• Like all Seekers he can run on all fours and do a bird-hop Toucan jumping down the stairs
• I bet you're all wondering about the ghost thing huh? Well that's simple! Starscream was the first to die at the hands of the Unicronians, he was their sacrifice to Unicron. Being marked with Unicrons energy and practically like a homing beacon for the colossal abomination to reach Cybertron he really should have been consumed by the chaotic entity but instead his proximity to the AllSpark ended up shielding him but rejected his Spark due to the chaotic/poisonous energy that surrounded it from Unicron. Thus he was left in limbo, gradually recollecting himself until he became the ghost we know.
• After two failed attempts at getting his body back his ghost now lingers on Chaar, what's worse, after being "killed" by a Unicronian a second time his energy is now much weaker, a third time and who knows what will happen to him, he doesn't want to risk dissipating and merely ceasing to exist rather than properly joining the AllSpark.
• It's okay, he's not totally alone, he does have a friend on Chaar to hang out with. Not that he has a choice, the little paranormal obsessed nuisance always seeks him out and wants 'to play'. He's not super excited to have them about for various reasons.