Other works

(1973) Unsold pilot: Co-starred in a sitcom pilot for NBC called "Patsy". Pat Cooper starred as the manager of a small Italian restaurant who must deal with his oddball relatives.

(1968) Unsold pilot: Co-starred in a comedy pilot called "Stanley Against the System" which featured Larry Hovis as the title character.

(1974) Unsold pilot: Co-starred with Johnny Brown in a sitcom pilot for ABC called "The Fireman's Ball." It concerned the misadventures of a group of San Francisco firemen. ABC liked the concept enough to recast and re-shoot another pilot in 1975, with Ketchum and Brown the only returning actors, but the network decided not to pick it up.

(1970s-90s) TV commercials: Union 76 gas stations (as "Murph")

(1967) TV commercial (w/Don Adams): Pepsodent (as his "Agent 13" character from Get Smart (1965))

(1970s-90s) Print ads: Union 76 gas stations (as "Murph")

(1970s-90s) Radio commercials: Union 76 gas stations (as "Murph")

(1967) TV commercial: 1967 Chevrolet Impala.