Tim is the first male to be revealed in Tales of an Ender, and only in the group. This would explain the awkwardness towards Jenny, his love. The love triangle (Tim, Jenny, Avery) was normal, as Avery was treated like a big sister. There is not much to tell about him since his. [Blocked until reveal]
His appearance has a small brown afro, and pale skin. It is not mentioned that he wears a scarf much, but it is true. See Trivia.
Tim Banniker was a pretty sloppy remake of the most well-known doctor in Doctor Who, Tom Baker.
Scarf? Well, check, but not much mention.
Parody name? Check.