01of 18
DAVID BOWIE
Nickelodeon; Terry O’Neill/Iconic Images/Getty
02of 18VICTORIA BECKHAMNickelodeon; Anthony Harvey/GettyQueen Amphitrite from “The Clash Of Triton” episode in season 6.
02of 18
VICTORIA BECKHAM
Nickelodeon; Anthony Harvey/Getty
Queen Amphitrite from “The Clash Of Triton” episode in season 6.
03of 18JOHNNY DEPPNickelodeon; Jeff Spicer/GettyJack Kahuna Laguna from the “SpongeBob vs The Big One” episode in season 6.
03of 18
JOHNNY DEPP
Nickelodeon; Jeff Spicer/Getty
Jack Kahuna Laguna from the “SpongeBob vs The Big One” episode in season 6.
04of 18SCARLETT JOHANSSONParamount/Kobal/REX/Shutterstock; GettyPrincess Mindy in 2004’sThe SpongeBob SquarePants Movie.
04of 18
SCARLETT JOHANSSON
Paramount/Kobal/REX/Shutterstock; Getty
Princess Mindy in 2004’sThe SpongeBob SquarePants Movie.
05of 18MARK HAMILLNickelodeon; John Shearer/GettyThe Moth from the “Night Light” episode in season 5.
05of 18
MARK HAMILL
Nickelodeon; John Shearer/Getty
The Moth from the “Night Light” episode in season 5.
06of 18KRISTEN WIIGNickelodeon; Steve Granitz/WireImageMadame Hagfish from the “The Curse of the Hex” episode in season 7.
06of 18
KRISTEN WIIG
Nickelodeon; Steve Granitz/WireImage
Madame Hagfish from the “The Curse of the Hex” episode in season 7.
07of 18
JON HAMM
Nickelodeon; Mark Sagliocco/Getty
08of 18AMY POEHLERNickelodeon; GettyGranny Stew from the “Have You Seen This Snail?” episode in season 4.
08of 18
AMY POEHLER
Nickelodeon; Getty
Granny Stew from the “Have You Seen This Snail?” episode in season 4.
09of 18JOHNNY KNOXVILLENickelodeon; Jeff Kravitz/FilmMagicJohnny Krill from the “Extreme Spots” episode in season 9.
09of 18
JOHNNY KNOXVILLE
Nickelodeon; Jeff Kravitz/FilmMagic
Johnny Krill from the “Extreme Spots” episode in season 9.
10of 18GINNIFER GOODWINNickelodeon; Amanda Edwards/WireImageTeenage Mermaid from the “Welcome to the Bikini Bottom Triangle” episode in season 7.
10of 18
GINNIFER GOODWIN
Nickelodeon; Amanda Edwards/WireImage
Teenage Mermaid from the “Welcome to the Bikini Bottom Triangle” episode in season 7.
11of 18ADAM WEST & BURT WARDNickelodeon; Jason Merritt/FilmMagicMermaid Man and his partner Barnacle Boy.
11of 18
ADAM WEST & BURT WARD
Nickelodeon; Jason Merritt/FilmMagic
Mermaid Man and his partner Barnacle Boy.
12of 18GENE SIMMONSNickelodeon; J. Merritt/FilmMagicSea Monster from the “20,000 Patties Under The Sea” episode in season 5.
12of 18
GENE SIMMONS
Nickelodeon; J. Merritt/FilmMagic
Sea Monster from the “20,000 Patties Under The Sea” episode in season 5.
13of 18PAT MORITANickelodeon; Nancy R. Schiff/GettyKarate guru from the “Karate Island” episode in season 4.
13of 18
PAT MORITA
Nickelodeon; Nancy R. Schiff/Getty
Karate guru from the “Karate Island” episode in season 4.
14of 18JOHN GOODMANNickelodeon; Valerie Macon/GettySanta Claus from the stop-motion “It’s a SpongeBob Christmas!” special in season 8.
14of 18
JOHN GOODMAN
Nickelodeon; Valerie Macon/Getty
Santa Claus from the stop-motion “It’s a SpongeBob Christmas!” special in season 8.
15of 18ANDY SAMBERGNickelodeon; Noam Galai/WireImageColonel Carper from the “Hello Bikini Bottom” episode in season 8.
15of 18
ANDY SAMBERG
Nickelodeon; Noam Galai/WireImage
Colonel Carper from the “Hello Bikini Bottom” episode in season 8.
16of 18BIZ MARKIENickelodeon; Mike Pont/WireImageKenny the Cat from the “Kenny the Cat” episode in season 9.
16of 18
BIZ MARKIE
Nickelodeon; Mike Pont/WireImage
Kenny the Cat from the “Kenny the Cat” episode in season 9.
17of 18DENNIS QUAIDNickelodeon; Allen Berezovsky/GettyGrandpa Redbeard from the “Grandpappy the Pirate” episode in season 6.
17of 18
DENNIS QUAID
Nickelodeon; Allen Berezovsky/Getty
Grandpa Redbeard from the “Grandpappy the Pirate” episode in season 6.
18of 18RAY LIOTTANickelodeon; Oscar Gonzalez/NurPhoto via GettyTrevor, the leader of the street gang the Bubble Poppin' Boys, from the “WhoBob WhatPants” episode in season 5.
18of 18
RAY LIOTTA
Nickelodeon; Oscar Gonzalez/NurPhoto via Getty
Trevor, the leader of the street gang the Bubble Poppin' Boys, from the “WhoBob WhatPants” episode in season 5.
source: people.com
