The Claw Gang is a Gang of cats brought together by the evil Oil Can Harry, even though he isn't a member. It consists of an unamed deputy leader, Butch, Spike, Killer, and Shrink, all pawns in Oil Can Harry's game against Mighty Mouse.
Time and time time again the Claw Gang had failed to kill Mighty Mouse until he was run over by a plane just landing. But he wasn't dead yet! He was just faking it.