 Owing to his health problems and the fact that producer Weintraub had decided to go for a "younger look" for the apeman, his contract was mutually dissolved.Mahoney made three appearances on the Ron Ely "Tarzan" series--"The Ultimate Weapon" (1966), "The Deadly Silence" (1966) (a two-part episode, later edited into a "feature film"), and "Mask of Rona" (1967).In 1981, Mahoney returned to the Tarzan film series as the stunt coordinator on the John Derek-directed remake of "Tarzan, the Ape Man".