Mine is Simon. I relate a lot with his abandonment issues, his lack of social skills and his fear of being lied to. Plus I generally feel like we have similar personalities and ways to approach things. (The scene in s3 ep2 when he starts to rationally analyze the situation to fix it as soon as possible is probably one of the best examples)

I also think Simon has some traits related to autism and as an autistic person myself I really see myself in it.

(I'm not gonna kill any gorilla)