Visible crew/equipment: When Roy and Johnny are with the nun, and Chet is helping with the kids on the school bus, the bulging outlines of the mic transmitters and wires are visible on the backs of all their shirts.
Visible crew/equipment: When the burned man is wheeled down the hall in Rampart shouting, "I'll sue you too," the actor's black tape mark is visible on the floor between Brackett and Johnny, just before Early steps on his mark. Additionally, another tape mark was visible a moment earlier, where Early stood before walking over to Johnny and Brackett.
Visible crew/equipment: When Dixie looks for Sally to flush the patient's eyes, she finds her in the hallway, and there are two actors' tape marks on the floor in the waiting room, where Dixie and Mike, the patient's friend, will stand in a moment.
Continuity mistake: When DeSoto joins Gage at the kitchen table they discuss Gage's bright idea of rodeos. In all the shots facing DeSoto his hands are clasped together with the coffee cup on the table, but in all the shots facing his partner, he's holding the cup of coffee. The magazine ends up under DeSoto's arms between shots as well.
Other mistake: When Squad 51 is dispatched to the 'child in a coma', the address is given as "3705 Orchard", but when they park on the building's corner the street sign reads Colfax. As an aside, this is the same location/footage that is used in 2x5, "Peace Pipe", with the address given as "1017 Crocker" in that episode.
Continuity mistake: After treating the girl who had a soda pop bottle explode in her face, when John and Roy are carrying the stretcher out the door, they're facing the stretcher and each other in the interior shot, but in the exterior shot John has turned around, with his back facing Roy while carrying the stretcher.
Continuity mistake: While the children from the bus accident are being lowered on 43's snorkel, Roy and Johnny are in the bus with the nun. Then even though quite some time has passed, by the time Roy and John are ready to free her from the wreck, it cuts to the shot of the same children still being lowered on the snorkel.
Continuity mistake: After Sister Barbara is brought to the ER, when Dixie tells Roy to get coffee with her, Dixie has long nails with light colored polish as usual, but when it cuts to the closeup of Dixie's hands getting coffee from the urn, the long nails are unpolished.
Answer: I believe you are speaking of the old man, Mr. Wilson. He's played by J. Pat O'Malley.
Bishop73
Correct, it was J. Pat O'Malley...he also played the grandfather with his grandson when their rocket exploded, and also played "Old Bill" in the episode with Ann Prentiss, where Gage saves the little girl from the burning tree house, and her mother falls in love with him.