Just watched another episode and was surprised to see Leonard Nimoy had a part as a small time hood in a protection racket.Episode 8 Blood Money is you want to take a look.
I think I recall that one. There’s also a 2nd-season episode in which Barbara Eden has a decent-sized role. And, there’s that motorcycle-gang episode with a young Clint Eastwood. I have all four seasons on dvd. In retrospect, the time I once met Nimoy, I wish I’d thought to ask him about some of those early, small roles in Ziv shows. I also recall him playing a bit in an episode of Ziv’s “Man Called X” series.
Another actor (in his salad days) you see a lot on “Highway Patrol” is Stuart Whitman, portraying the accompanying patrolman who always assists Dan Mathews. Other times, it’s b-western badman Terry Frost who assumes that patrolman role.