Roger Charles Carmel was an American actor. Of his hundreds of roles, he is best remembered for playing the flamboyant and hapless criminal Harcourt Fenton Mudd in two episodes of NBC's Star Trek: The Original Series: "Mudd's Women" and "I, Mudd", and one episode of Star Trek: The Animated Series: "Mudd's Passion". He was one of only four actors, other than those who played Enterprise crew members, to appear in multiple episodes of Star Trek: The Original Series, and the only one to portray the same character.
Carmel starred as Roger Buell in the 1967 NBC sitcom The Mothers-in-Law, but was replaced by Richard Deacon after season 1 due to a salary dispute with producer Desi Arnaz.
Carmel's other guest roles included the accountant Doug Wesley on CBS's The Dick Van Dyke Show and Colonel Gumm on ABC's Batman. He also appeared in roles on The Patty Duke Show, I Spy, Blue Light, The Everglades, Hogan's Heroes, Car 54, Where Are You?, Banacek, The Man from U.N.C.L.E., The Munsters, Voyage to the Bottom of the Sea, Hawaii Five-O, The High Chaparral, All in the Family, and The San Pedro Beach Bums. He was a regular contestant on Pantomime Quiz, also known as Stump the Stars. His film roles included Gambit, Myra Breckinridge, Breezy, Thunder and Lightning, and Jerry Lewis's comeback film, Hardly Working (1981).
Later in his career, Carmel was a frequent voice actor. He voiced Smokey Bear in fire safety advertisements and Decepticon deputy leader Cyclonus, among others, in the second and third seasons of the popular Transformers animated series. In the television commercials for the Naugles chain of Mexican fast-food restaurants, he played the character of Señor Naugles.
Carmel died in Hollywood, of hypertensive cardiomyopathy in 1986. He was interred in New Mount Carmel Cemetery in Glendale, Queens, New York.