Officer Rob Johnson  is a light teal-colored police fish who makes several cameo apparances throughout the series, starting in the episode "Hall Monitor."
He is a light teal-colored fish who wears a white shirt with a big gold badge on it, black shoes, a blue police cap, and blue pants.
He is the Head Police of the K9 unit. He first appears in "Hall Monitor," asking Patrick some questions. His last name is revealed in "Growth Spout" as "Johnson" by Officer John Slugfish. He also appears in "I'm Your Biggest Fanatic" as a security guard who is constantly trying to keep Patrick from playing with the displays, and the final straw is when Patrick chases down Jeffrey the Jellyfish; he goes to confront Patrick.
He appears in "Bossy Boots," where he writes a ticket to Squidward for being naked in front of a couple after he stripped his uniform.
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