This is the Teenage  Mutant Ninga Turtels (TMNT) logo.

This is Leonardo (Leo),he is the leader of the group.

This is Donitelo (Donie), he is the smart one.

This is Michelangelo (Mickey),he is the funny one of the group.

This is Raphael (Raph),he is the fighter of the group.

This is Splinter,he is the sense.

This is Shredder,he is the main enemy.