User:Superjokertv

The following is a list of appearances by Billy:

Series 4

 * The New World
 * Escape to L.A.
 * The Middle Men
 * Immortal Sins
 * End of the Road
 * The Gathering
 * The Blood Line

BBC New Series Adventures - Tenth Doctor novels

 * Autonomy

My favorite pages

 * Doctor Who: The New Regenerations
 * Time Agent: North East Base
 * Time Agent
 * Doctor Who: The 11th Regeneration
 * DC Comics Database Wiki
 * Marvel Comics Database Wiki
 * Supernatural Wiki