Old Man Jenkins is an elderly fish. His name is a character name used in various episodes as the running gag. The name was originally applied to the elderly green fish in the image above, who appears commonly throughout the series, but in other episodes the name "Old Man Jenkins" has been used for completely different characters, although they are always elderly fish. His first name is unknown. He has been voiced by Tom Kenny, Doug Lawrence and regularly by Dee Bradley Baker. In the episodes Friend or Foe and The Main Drain, he appears except he is taller and a dark green color. He also doesn't wear glasses.