Doyle-Murray was in ten episodes during the first eight seasons. He returned in the eleventh season, starting with the episode "The Legend of Boo-Kini Bottom".[11]
McKean was in two episodes during the ninth season. He voiced Captain Frostymug in "License to Milkshake" and Lonnie the shark in "Sharks vs. Pods".[15][16]
Abrell was in the show's second season. He returned to voice Bubble Buddy for the eighth-season episode "Bubble Buddy Returns". He returned again in the eleventh-season episode "Bubbletown".[17]
Conway started in 1999 with his former McHale's Navy co-star Ernest Borgnine.[18] He has been in more than 15 episodes. In September 2018, he stopped because of health issues.[21] Conway died on May 14, 2019.
Ross voiced Grandma SquarePants, who is SpongeBob's paternal grandmother. She was in the episodes "Grandma's Kisses," "BlackJack," "The Abrasive Side," and "Pet Sitter Pat". She was also in the related video game Employee of the Month.[24]
Tibbitt took over the role of Potty the Parrot when Stephen Hillenburg left. He started in the fifth-season episode "Friend or Foe". He last voiced the character in the eighth-season episode "It's a SpongeBob Christmas!"
Paxton voiced multiple child characters in the show's first three seasons.[25][26][27] An old recording of her voice is used in the tenth-season episode "Unreal Estate."
Camryn Walling
Walling voiced multiple child characters throughout the show's second and third seasons.[17] An old recording of his voice is used in the tenth-season episode "Unreal Estate."
Welker voiced multiple animal characters in the tenth season. These animals include Clamu, Baby Oyster, Mystery the Seahorse, and the gorilla. He has not been on the show since.[17]
↑ 2.02.12.22.32.42.52.62.72.8Cite warning: <ref> tag with name Cast cannot be previewed because it is defined outside the current section or not defined at all.
SpongeBob SquarePants: The Complete 2nd Season ("The Smoking Peanut" credits) (DVD). United States: Paramount Home Entertainment/Nickelodeon. October 19, 2004.
SpongeBob SquarePants: The Complete 3rd Season ("My Pretty Seahorse" and "I Had an Accident" credits) (DVD). United States: Paramount Home Entertainment/Nickelodeon. September 27, 2005.
↑SpongeBob SquarePants: The Complete 3rd Season ("Mermaid Man and Barnacle Boy V" credits) (DVD). United States: Paramount Home Entertainment/Nickelodeon. September 27, 2005.