 As an occasional actor, Olson has guest-starred in a live action sequence in "SpongeBob SquarePants" ("Mermaid Man and Barnacle Boy V" and "Swamp Mates"), in "Don't Watch This Show" by director-comedian Bobcat Goldthwait, in the documentary "When Standup Stood Out" by filmmaker Fran Solomita, on "The Tonight Show" playing an Indian yogi with Bobcat Goldthwait, in various comedy web series, and in a featured role as a fundamentalist professor in the film The Anna Cabrini Chronicles by filmmaker Tawd B. Dorenfeld.Olson also plays Hunson Abadeer aka "The Lord of Evil" on Cartoon Network's "Adventure Time" and his real-life daughter Olivia Olson voices the role of his character's daughter, Marceline the Vampire Queen.Olson also appears in videos by his friends Garfunkel and Oates, Melinda Hill, Katie Schwartz and Adam Scott Franklin.