Home People John Erwin John Erwin movies John Erwin movies John Erwin Movies (6) Back to the Future Part II (1989) As Radio Sportscaster (voice). He was 52 years old Skeletor's Revenge (1986) As He-Man / Prince Adam / Webstor / Whiplash / Beast Man (voice). He was 49 years old He-Man and She-Ra: A Christmas Special (1985) As He-Man / Prince Adam / Cutter / Webstor (voice). He was 49 years old He-Man and She-Ra: The Secret of the Sword (1985) As Prince Adam / He-Man / Beast Man (voice). He was 48 years old Aesop's Fables (1971) He was 34 years old Archie and His New Pals (1969) As Irwin.
