He's Eight, a member of the gang or group Seven left that is looking for him. They run an exotic pet store. In the last scene that showed Eight he was told to "service" that old man with the help of some younger guy.
I get your question, but let's not use 'retarded' it's offensive. OpiSin
What? Retarded is insulting when used in contexts not pertaining to mental retardation. The uke is suffering from brain damage. This is the actual time to use the word.
Seems legit