Continuity mistake: During this episode, treatment 4 and treatment 2 keep switching places, between being located beside the nurses' station or being located near the ER entrance. For instance, when Johnny is on the line telling Rampart that Dr. Knott doesn't want to come in, treatment 2 is by the nurses' station, but when Roy ribs Johnny about his sex fantasies, treatment 2 is near the entrance. Quite fun to try and keep track of the repeated switching.
Visible crew/equipment: When Mr. Laurents visits Station 51, as the guys stand up the actor's T-mark is visible on the floor, between DeSoto and Chet, just before Chet promptly stands at his mark.
Revealing mistake: Squad 51 has a flashing light-bar mounted on the roof of the vehicle. There is about 4-5" of space between the length of the light frame and the roof, which means that Squad 51's surrounding environment is easily visible through that gap in normal shots. The hiccup here are certain close-ups of Gage and DeSoto while they're 'driving', because that gap is covered (with red to match the vehicle) and sometimes, when it's daylight, the gap is dark. The same thing happens with the space behind the cab unit (seen through the window), with the red blocking the opening.
Continuity mistake: In many of the interior shots of the paramedic cab, as it heads to the destinations, there is a rear view mirror on the windshield. In all the exterior shots there is no rear view mirror.
Visible crew/equipment: When Squad 51 is dispatched to 'person caught in a mailbox', have a look at the squad's license plates when it rolls up on scene. The plates read "70324H" which is the California commercial plate number for Squad 51, not the usual prop dept's license plate "E999007." It was the prop dept's responsibility to change from the commercial plate to the prop plate, but this scene slipped by them. It's also interesting to notice that this scene takes place at a real intersection up the block from Universal Studios, which is the direction Squad 51 came from. Note the "Black Tower/MCA Tower" in the background, which houses Universal's executive offices.
Revealing mistake: When Engine 51 and/or Squad 51 are dispatched, the shots of the vehicles when they are first dispatched, while en route to the call or en route to Rampart, etc, in many instances, are stock footage or repeat shots which show the same traffic, same parked cars, same people, etc., from previous episodes.
Revealing mistake: En route to the pick-up truck hanging from the freeway on-ramp, there is a flipped shot of Engine 51 and Squad 51 as they drive under the freeway before the camera pans in towards the car. Some giveaways are the reversed '51' on Engine 51 and the reversed 'road construction ahead' sign.
Visible crew/equipment: After spending all night on the job, when the tired guys of 51 are at the basketball game, the outlines of the mic transmitters and wires are visible on the backs and sides of 51's jerseys, particularly when Roy gets injured. (00:36:00)
Continuity mistake: When Johnny and Roy are with the heart transplant patient who is having chest pains, after they contact Rampart, in the wide shots Johnny has the stethoscope around his neck, but in his closeups the stethoscope is gone.
Continuity mistake: When the guy (Michael Conrad) with the gunshot wound is being wheeled out of the treatment room there is nothing on his face, but in the shot from the hallway as they exit the room suddenly he has a tube inserted into his nostril with tape holding it in place.
Other mistake: While Charlie is trying to figure out what's wrong with the squad, when Captain Stanley, Roy and John are sitting around the table, there's a can of scouring cleanser which has yellow tape covering the "a" and "x" so all we see is the "ja" on the can, in order to hide its brand name, which is Ajax.
Continuity mistake: After the cropduster crashes, when Roy and Johnny pull the pilot out of the overturned aircraft and begin working on him, Johnny's medical holster with penlight, forceps and scissor is clipped at his right hip and the other holster's at his left hip, but when Johnny shouts to Chet about giving the victim oxygen, Johnny's holsters have switched sides.
Continuity mistake: After Brackett gets off the phone with Dr. Meier, he walks back to treatment 1, and when Brackett speaks to Morton about the patient being on warfarin, the stethoscope around Brackett's neck vanishes in his closeups, and reappears in wide shots.
Continuity mistake: When Roy and John are talking to Vic at his party, his manager's cigar changes length repeatedly, from short to long and back again, depending on the camera angle.
What's a Nice Girl Like You Doing...? - S7-E7
Visible crew/equipment: After the last rescue it cuts to Roy as he says, "We'll catch you all a little later," and when Roy walks away we can see the actor's T-mark on the floor, where he was just standing.
Continuity mistake: When Roy and John are at the inexperienced cook's apartment the second time, when her fingers are caught in the mixer, she's wearing a blue/white striped dress and a watch on her left wrist, but in the closeup as she reaches for the boiling pot her watch is gone and it's a white sleeve on her arm.
Continuity mistake: When Roy, John, and Marco walk into the rec room while Chet is trying to wax the floor, Marco is wearing a ring on his left hand in the wide shots, but in the closeups with Captain Stanley the ring is gone.
Captain Hook - S6-E8
Other mistake: When John, Roy, and Chet are standing near the stove talking about how much they enjoyed Hookrader's party, there's a can of cleaning powder which has tape swirled around the can to hide the recognizable design and its brand name, which is Ajax.
Visible crew/equipment: When the woman staggers into the ER a nurse rushes over, and the actor's T-mark is visible on the floor in front of the admitting desk, where the nurse was just standing.
Visible crew/equipment: After Roy and Johnny pick up supplies at the nurses' station, they walk down the hallway and stop midway to talk about Johnny's insomnia. After speaking a few moments, Johnny and Roy head for the exit, so the camera follows them without cutting away, and when a father and son enter the hospital the camera turns, without cutting away, and follows them up the hallway. Just before the father and son reach the nurses' station, the actors' two black tape mark are visible on the floor behind them, precisely where Roy and Johnny had been speaking.
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.