Officer Sanchez / LA County Sheriff's Deputy / Officer in Police Station / Police Officer / Uniformed Officer
Warden / Inmate of San Quentin Prison
Fireman Marco Lopez
... Fireman Marco Lopez (as Marco López)
Marcus Welby, M.D.
Anesthesiologist / Jury Foreman / Marco
... Jury Foreman (uncredited)
Dr. Shazar / Police Officer / Gang Member
Officer Sanchez / LA County Sheriff's Deputy / Police Officer / ...
... LA County Sheriff's Deputy (uncredited)
Croupier / Reporter / Man at Airport / ...
... Man at Airport (uncredited)
... Police Officer (uncredited)
Delivery Person / Cop
Uniformed Officer / 1st Officer / Garage Attendant / ...
Harold Lopez - Passenger (uncredited)
Hanu (as Marco Antonio)
Luis, the Bellhop (as Marco Antonio)
Marco Antonio | Marco López
Did You Know?
In the first season episode Emergency!: Hang-Up
(1972), it opens with the crew watching Adam-12: Ambush
(1971). If they watched it in its entirety, Marco would have seen himself as he guest starred in that very episode. Additional: Actually, they would have already seen Marco as he was one of the deputies that brought William Campbell out to Adam-12 for transport to L.A.