Grenoldo Frazier (b. 1953) is an actor and composer whose stage credits include Barnaby Tucker in Pearl Bailey's version of Hello, Dolly! on Broadway. Frazier played Phineas T. Barnswallow in the first Sesame Street Live production A Sesame Street Mystery: The Case of the Missing Rara Avis, supplying both the pre-recorded voice and the on-stage suit performance. Frazier also voiced one of the Anything Muppets singing "Disco D" on Sesame Street itself.
Frazier's other credits include the revue Billy, Lena and The Duke: A Night of Ellington Music! (as Duke Ellington) and the off-Broadway play Moms (starring Clarice Taylor as Moms Mabley), for which he served as musical director, additional composer, and played the supporting role of Luther. Television credits include episodic appearances on the soap opera One Life to Live and American Gothic.