His filmography reads like an A-list of iconic 60s and 70s TV shows. The prolific Richard Evans could be found playing a host of gauche rancher's sons and junior officers or beady-eyed gunslingers and ne'er-do-wells on prime-time classics like Gunsmoke (1955), Bonanza (1959), Star Trek (1966), The Virginian (1962), The F.B.I. (1965), Mannix (1967)...