This is a list of all the major and minor characters from the animated television series Rocko's Modern Life and the comic book of the same name.
Joe Murray, creator of the series, said that he matched personalities of his characters to various animals, forming a "social caricature."
Rocko is a wallaby who emigrated from Australia to the United States, he is the protagonist of the show. He is 18 years old. He is a sensible, moral, and somewhat timid character who enjoys the simple pleasures in life, such as doing his laundry or feeding his dog, Spunky. He is neat, compassionate, and self-conscious. He wears a blue shirt with purple triangles, sneakers and no pants. Rocko usually works at "Kind of a Lot o' Comics" (but once worked at Conglom-O where Ed Bighead attempted to make him quit) and his hobbies include recreational jackhammering and pining for the love of his life, Melba Toast. Due to Rocko's benevolence and non-confrontational personality, his kindness is often taken for weakness. He is often taken advantage of by the other characters. Rocko would prefer to live a quiet life, but his reckless friends often throw him into turbulent situations. His most common catchphrase is "______-Day is a very dangerous day", even once saying "Open mic night is a very dangerous night." He is often mistaken for a weasel, a platypus, and occasionally a beaver or even a dog. Rocko has no family name because the writers could not think of a family name that they liked.
Spunky is Rocko's Miniature Bull Terrier. He has a very high-pitched bark and wags his tail a lot. He's not too bright and will eat anything on sight, including Mr. Bighead's salmon bushes and a moldy slime found in Rocko's refrigerator. He often repeatedly drools into his water bowl and drinks it, only to drool into it again. He is Rocko's only regular pet and Rocko loves him dearly. Rocko will go to great lengths to protect Spunky if he is in danger or about to do something stupid. Spunky is best remembered for falling in love with a mop in the episode "Clean Lovin'", much to Rocko's dismay; Spunky was noted to have used his front paws as hands as he tries to protect the mop. Spunky is also the home of two parasites, Bloaty and Squirmy. Spunky also can do a cool trick but it was not shown.