Rob Koi is one of the head ad executives of Grouper, Goby & Koi, who appears in the episode "Goodbye, Krabby Patty?."


He is light tan with an orange dorsal fin, and has black hair. He wears a dark blue suit and pants with a purple tie.


He is one of the ad executives who agrees that "old is gross" and rejects the slogan SpongeBob comes up with.

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