Duration: 23m

TV-Y7 7.3 Animation / Comedy

SpongeBob SquarePants S8E11

SpongeBob and Patrick learn the origins of Mermaid Man and Barnacle Boy; Plankton grows a second eye to become nicer.

Release Date: September 23, 2011 (USA)

Creator: Stephen Hillenburg

Cast: Tom Kenny, Bill Fagerbakke, Rodger Bumpass, Clancy Brown, Carolyn Lawrence, Mary Jo Catlett