Billy Williams

Billy Williams, also known as Big Billy, is a recurring character in The Powerpuff Girls, a low ranking member of the Gangreen Gang.

Season 1
When Desmond Callahan put Christopher Mills' petition to join the Gangreen Gang in front of his team, Lucas Neuwirth agreed to accept him since their team needed another person, but that he would have to go through the initiation first. Billy and the rest of the team drove to Millennium Park when he and Lucas staged a fake abduction of their teammate Brooklyn Tanner. Christopher saw and took action by grabbing Lucas and ordering Billy to let her go, but Desmond appeared with a gun to Christopher's head. Each other members took a turn hitting Christopher except for Billy. They welcomed him into the gang and left him behind.