Encyclopedia SpongeBobia
Encyclopedia SpongeBobia
I hope I don't miss again.
— Old Man Walker, "The Algae's Always Greener"

Old Man Walker[1][2], also known as Incidental 83[3], Incidental PM7, and Old Fish A[4], is an incidental character who first appears in the episode "Mermaid Man and Barnacle Boy." He is classified as an "elderly" type incidental.


For the first ten seasons, he was often credited as "old fish" or "old man." In 2013, the music video for the SpongeBob Schwammkopf BOBstar - das total abgedrehte Album song "Kommt doch rein" (a cover of the Culcha Candela song "Von allein") called him Alter Jenkins.[5] Several fans and episode 8 of Bikini Bottom Mysteries mistook his name as "Old Man Jenkins," who is a separate character. Season 11 began specifically calling him Old Man Walker; "Plankton Paranoia," "Pineapple RV," and "SpongeBob's Big Birthday Blowout" all use this name. The 2020 card and dice game Plankton Rising (which calls Incidental 87 "Mary Walker") calls Old Man Walker "Old Man Jenkins."


He is a short light green elderly fish with light orange liver spots on top of his head, and beige colored lips that greatly resemble the lips of a clam. He wears a light blue hospital gown and has thick glasses.

Stop motion

He is colored blue gray with orange liver spots on his scalp and back. He has more of a cleft chin, he wears glasses but has no eyes behind them, he wears light gray pants, and holds a brown wooden cane.

Incidental PM7

A sketch of Incidental PM7's model pose.

He is an elderly patty monster with army green fins and light orange lips. He wears thick glasses and uses a walker with tennis balls to walk around.

Old Fish A

Old Fish A is shown with no eyes under his glasses…

He is colored pale green with salmon lips. He wears a dark blue striped hospital gown and blue framed glasses. He appears to lack eyes without his glasses which can be seen if the player smacks him with his glasses flying off for a short time.


Though Old Man Walker is an incidental, he has been shown to have a consistent personality in many episodes. He is usually portrayed as a meek and clueless elderly man. Because of this personality, other characters in the show usually do things to him such as taking advantage of him and even using or seeing him as an inanimate object.

Role in series

Old Man Walker talking to a support beam.

Old Man Walker is a fairly commonly used incidental character. He is arguably the most commonly used elderly incidental in the series. He is shown to usually have a consistent personality and voice throughout the series and he makes his biggest role yet as a side character preparing SpongeBob's birthday party in "SpongeBob's Big Birthday Blowout" alongside some of the other main characters.

Major roles

"Your Shoe's Untied"

When Squidward swallows several Krabby Patties by mistake, Old Man Walker pokes him from behind and asks him what the hold up is. He is later heard yelling that he and the customers are going to the Chum Bucket instead while Mr. Krabs is in the bathroom.

"Prehibernation Week"

Sandy has him, Scooter, and Incidental 41 look inside a cave for SpongeBob, but they run out when they find out the cave is really an elephant fish.

"Christmas Who?"

He asks Squidward dressed as Santa Claus where his Christmas present is.

"The Algae's Always Greener"

He runs into a Krusty Krab support beam and begs its pardon. He then grabs the ketchup bottle that Plankton is hiding in and accidentally shoots him right through the wall of Mr. Krabs' office due to his bad aim.

"SpongeGuard on Duty"

SpongeBob rubs sunscreen onto his back.

"As Seen on TV"

He watches a Bran Flakes commercial and mistakes SpongeBob as the cereal box on TV.

"Plankton's Army"

He and Incidental 87 were featured in a deleted scene in the episode where Plankton's cousins attack them at the Krusty Krab.

"SpongeBob Meets the Strangler"

The Tattletale Strangler accuses him of being the Strangler in disguise.

"Fear of a Krabby Patty"

He is shown randomly moving on the screen during the montage of the Krusty Krab's 24-hour business shown on the Bikini Atoll screen.

"Once Bitten"

He suspects that Patrick is a zombie for telling SpongeBob that he would "put his eye on him" and then gets everyone else in the Krusty Krab to believe that they are all zombies.

"Rule of Dumb"

SpongeBob confiscates his walker to give to King Patrick, which causes Old Man Walker to fall face down.

"Born to Be Wild"

He is a member of the Mild Ones.

"The Original Fry Cook"

He orders a Krabby Patty at the beginning of the episode.

"Fungus Among Us"

Squidward gives him his change covered in ick, which gets him infected.

"Krabs à la Mode"

Plankton appears inside his soda while he is spying on Mr. Krabs to find out that touching his thermostat triggers him. After 4 hours, Old Man Walker leaves the Krusty Krab bathroom after closing time and tries to exit but the doors were locked and he states he is locked in again. He later appears at the Krusty Krab when it becomes frozen and is heard complaining about what is taking so long. He then reappears in the frozen Krusty Krab again wearing snow gear where he complains where his Krabby Patty is. SpongeBob then shoots his Krabby Patty right into his moth which causes him to slam onto the window. He then claims his patty is delicious.

"Roller Cowards"

He tries to ride the Fiery Fist O' Pain but Incidental 40 forbids him from doing so because he has a serious medical condition.

"Money Talks"

He is shown eating with Incidental 87 at the Krusty Krab, with the latter narrating the amounts of chews he takes to finish his Krabby Patty and Walker demanding her to stop rushing him. They are eventually kicked out because of a deal made by Incidental BM50 to sit at their table. He later appears at the Krusty Krab with her again when Mr. Krabs walks in while kissing his money. Incidental 87 then asks him why he never kisses her like that and Old Man Walker tells her not to start it.

"Sing a Song of Patrick"

He is shown to be the only citizen of Bikini Bottom that enjoys hearing "Twinkle, Twinkle, Patrick Star."

"Goo Goo Gas"

He appears as one of the elders whacking Plankton while he is trapped in a net.

"Dear Vikings"

He is seen at the bus stop with Viking 12, Fred, and Incidental 93.

"Toy Store of Doom"

He was found in SpongeBob and Patrick's toy chest.

"SpongeBob's Last Stand"

He is one of the elders featured in the Shelly Superhighway parade.

"The Cent of Money"

Mr. Krabs uses Gary the Snail to steal his coins from the coin machine at the Fun Arcade and Old Man Walker then complains about it to the Guard. He later appears at the coin machine again where a flood of coins come out of the machine before he was about to deposit more coins from it.

"Tunnel of Glove"

He is seen riding a roller coaster at the beginning of the episode.

"Bubble Buddy Returns"

He gets knocked down by Shiny Bubble.

"Glove World R.I.P."

He is seen riding the roller coaster that plunges into the ground while SpongeBob and Patrick walk to the Ferris Wheel.

"It's a SpongeBob Christmas!"

He appears during the song "Don't Be a Jerk" where SpongeBob notes that you should respect old folks.

"Super Evil Aquatic Villain Team Up is Go!"

He is seen dancing with Incidental 87 at the Ladies' Choice dance.

"Little Yellow Book"

He is first seen as the only customer sitting at the Krusty Krab near the beginning and is later seen gnawing on a support beam with other ravenous customers. He then receives his Krabby Patty from SpongeBob and tells him that he order pickles on his Krabby Patty which causes SpongeBob to shoot his pickles out of his ears. He then later appears as one of the items SpongeBob finds in a toilet.

"SpongeBob You're Fired"

While SpongeBob is flooding the Krusty Krab with his tears, Old Man Walker floats on a barrel and says "I'm not a strong swimmer." He is also seen at the end of the episode, trying to find a nickel in order to use the restroom.

"Lost in Bikini Bottom"

He is shown to be tangled in the barbered wire that was covering SpongeBob while he walks up to Squidward at the register.

"What's Eating Patrick?"

He is seen competing in the Krabby Patty eating contest during Mr. Krabs ' flashback where he gets shoved aside by an inflated Mrs. Puff.

"The Sewers of Bikini Bottom"

SpongeBob and Squidward nearly flush him down the toilet until they realize they accidentally picked him up and put him back at his table.

"House Worming"

He is part of the long object that Mr. Krabs and Squidward use to push a worm-infested SpongeBob out of the Krusty Krab.

"Plankton Retires"

SpongeBob disguises himself as Old Man Walker while Mr. Krabs is disguised as Incidental 84 while the spy on Plankton.

"Krabby Patty Creature Feature"

He is seen as Incidental PM7 walking slowly in front of the Krusty Krab until SpongeBob shoves him aside, making him fall apart. He later appears at the Chum Bucket in the scene where SpongeBob feeds the patty monsters chum where he gets shoved out of the way by Incidental PM13 right before Old Man Walker was about to eat the chum.

"Plankton Paranoia"

Mr. Krabs bans him from the Krusty Krab after he finds three Krabby Patties under his 10 gallon hat.

"Call the Cops"

He is one of the elders in the Bikini Bottom Police Department's evidence room.


He nearly dies from waiting too long at the Krusty Krab.

"Pineapple RV"

He takes over Squidward's job as Krusty Krab cashier while he goes on his road trip to visit the Warbling Water Lily.

"Shell Games"

He is strolling under Tony's shell and gets ran over by Patrick.

"SpongeBob's Big Birthday Blowout"

His biggest role in the series so far. He helps SpongeBob's friends prepare for SpongeBob's surprise birthday party. Mr. Krabs has him keep watch for SpongeBob and alert everyone else when he arrives. However, when SpongeBob does arrive, he and Patrick send him zooming away on his walker, therefore, failing his given duty.

"Who R Zoo?"

Patrick confiscates all of his sharp and pointy objects before entering the Bubble Zoo.

"Food PBFFT! Truck"

He is seen in the Krusty Krab line where Mr. Krabs swipes his money from his hand.

"Upturn Girls"

He appears as the old man feeding the clams in SpongeBob's brochure.

"Say Awww!"

He is seen helping form a pyramid when the Bikini Bottomites try to escape Q.T.-π for the first time.

"Patrick the Mailman"

When SpongeBob and Patrick are delivering mail, they make a stop at Old Man Walker's house. He is sad because he never gets any mail. SpongeBob and Patrick find this out and give him all the mail, making him overjoyed.

Major roles in movies

The SpongeBob Movie: Sponge Out of Water

He is featured as one of the marching characters in the end credits.

Major roles in The Patrick Star Show

"Squidina's Little Helper"

He is shown to be half buried in the sand after Patrick's performance ends.

"Terror at 20,000 Leagues"

The screen zooms right into his mouth during the introduction of the episode.


He is seen standing alone in an empty corn field after Cecil Star's RV zooms past it.

Major roles in games

Battle for Bikini Bottom/Battle for Bikini Bottom: Rehydrated

He appears as Old Fish A.

Bikini Bottom Mysteries Search

His gym uniform wearing variant appears as a suspect in the game.


  • He, Incidental 86,[6][7] and Incidental 91[8] are all given the name "Old Man Jenkins."
  • A running gag with this character is that he is known to wander around and be found in random places, similar to Incidental BB23.
  • He, Fred, Scooter, and Sandals are currently the only incidentals with confirmed names.

Old Man Walker as an official figural bag clip on the bottom right.

  • He appears as a SpongeBob figural bag clip for series 4.


  1. ^ "SpongeBob's Big Birthday Blowout"
  2. ^ https://twitter.com/vincentwaller72/status/961681425203281920
  3. ^ Incidental model sheet 2
  4. ^ Battle for Bikini Bottom filename data
  5. ^ SpongeBob feat. MC Fitti - Kommt Doch Rein (May 24, 2013).
  6. ^ "Sailor Mouth." SpongeBob SquarePants. Nickelodeon. September 21, 2001. Television.
  7. ^ "Missing Identity." SpongeBob SquarePants. Nickelodeon. January 19, 2004. Television.
  8. ^ "My Pretty Seahorse." SpongeBob SquarePants. Nickelodeon. July 12, 2002. Television.