He spent time with the U.S. Cavalry at Fort Riley, and became a bomber gunner in the South Pacific during World War II.
He would again double for Forbes in The Adventures of Jim Bowie (1956-1958)[2] Stunts in fight scenes were his specialty, and Sharp did at least a half-dozen with Michael Landon on Bonanza, with Sharp doubling for guest stars George Kennedy and Leif Erickson.
[2] As a stuntman, Sharp was a member of the Stuntmen's Association of Motion Pictures, and an inductee into the Stunmen's Hall of Fame.
[2] In 1963, Sharp and fellow stuntman Bill Hickman witnessed a bank robber, Carl Follette, speed by them on the Ventura Freeway near the Laurel Canyon off-ramp.
The car chase eventually ended in a North Hollywood parking lot where Follette was shot and killed in an exchange of gunfire with the police.