Rob Koi is one of the head ad executives of Grouper, Goby & Koi, who appears in the episode "Goodbye, Krabby Patty?" and the book Factory Fresh!.
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.
Role in series
He is one of the ad executives who agrees that "old is gross" and rejects the slogan SpongeBob
comes up with.