Edited by Wisconsin Mark on 9/27/2015, 5:40 am
Lockwood's 1963-64 series for Gene Roddenberry, The Lieutenant, is supposed to be quite good; I haven't seen any episodes. My favorite Gary Lockwood movie is Jacques Demy's Model Shop (1969).
It always strikes me that Lockwood is two peas in a pod with Glenn Corbett; they even look a lot alike. Where Lockwood had Follow the Sun and The Lieutenant, Corbett had It's a Man's World and Route 66. They both had key roles in Star Trek episodes. They both made Dixiesploitation films in the 70s (Corbett, Ride in a Pink Car and Nashville Girl; Lockwood, Bad Georgia Road). They both worked a ton in television. Corbett never got the big film roles. He passed away in 1993.