If you were looking for the article about the elderly fish, then see Old Man Walker.
If you were looking for the article about the other truck driver, then see Truck driver (Marlin).
N. Unofficial name

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Mr. Walker[2] is a character who makes appearances in a variety of SpongeBob SquarePants episodes. He is a truck driver in most of his appearances. His ex-wife is Mable-Monica and they might be the parents of Taylor Fishbowl. He is also the grandson of Mary Walker and Old Man Walker.


Mr. Walker is an obese light emerald green fish with a light green dorsal fin, and wears a red cap with a red tiled shirt, and faded blue pants with black shoes.


In "The Gift of Gum," the wheel of his truck, Old Blue, gets stuck in the gum that Patrick gives SpongeBob in celebration of Best Friends Day.

When Plankton insults Taylor in "20,000 Patties Under the Sea," his ex-wife takes offense and says, "Hey, you can't talk to my son that way," so Plankton fires back at her. Then he comes out and says, "You can't talk about my wife that way! What do you think this is?" When Plankton calls him fat, his mother comes out in his defense, and Plankton tells her that she belongs in a box floating down the river, and she replies, "You're probably right."

When Plankton turns to leave, the truck driver and his family begin to throw rocks at him and his submarine (the fist on the Chum Bucket). When they run out, SpongeBob and Patrick sell them Krabby Patties that Patrick left unattended, therefore burned, in their sub (the one they found by their houses).


Title Role(s) in episode
"The Gift of Gum" (tr) Debut
"New Digs" (tr)
"Picture Day" (tr)
"20,000 Patties Under the Sea" (tr)
"Slide Whistle Stooges" (tr)
"The Great Patty Caper" (tr)
"For Here or to Go" (tr)
"Squid Baby" (tr)
"Food Con Castaways" (tr)


  • He calls his truck "Old Blue."
  • It is revealed he has a family in "20,000 Patties Under the Sea."


  1. ^ a b c 20,000 Patties Under the Sea
  2. ^ Mary Walker is his grandmother.
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