Smoke Eater - S4-E16
Continuity mistake: When John and Roy are with the possible MI, while Roy's setting up the IV bag John's on the Biophone with Rampart, and after Brackett orders the IV TKO with MS, we see that Roy's pant leg has nothing on it, but then it cuts to the closeup and suddenly there are strips of torn tape (for IV as usual) on Roy's pant leg.
Smoke Eater - S4-E16
Continuity mistake: While John and Roy are treating the possible MI, when John's on the Biophone with Rampart his watch reads 5:10, but after the patient goes into V-fib John's watch reads 2:45.
Continuity mistake: During the structure fire at Kiddytime Toy Factory, when the man is downed by an electrical shock, Johnny pulls out the defibrillator and Biophone from the squad, and in Johnny's closeups with the Datascope we can see that its center knob on the right is missing, but in the Datascope's closeups the knob is back.
Continuity mistake: When Station 51 is dispatched to an 'unknown type rescue', the woman who opens the door tells them she didn't call, and when Roy asks her if he and Johnny can check on her sick husband, Roy's second shirt button is open and his undershirt is visible, but in the next shot it's buttoned up again.
The Wedsworth-Townsend Act - S1-E1
Continuity mistake: While Roy and John are at the boatyard searching for the girl's severed hand, when they walk into the mess of lumber neither of them can be seen in the other one's closeup, even though they both start looking around in the same spot, at precisely the same time.
Fair Fight - S6-E5
Continuity mistake: After John heads down to the victims of the cave-in, when they send down the drug box with the HT, the trauma case is still beside Roy, but when Johnny asks for the blankets the trauma case is gone. Then Johnny gives Roy the victims vitals, and when Johnny goes to the vent pipe to get the blankets they just sent down, suddenly the trauma case is down below with him, and it's open, but Johnny never retrieved the case before getting the blankets. Additionally, Roy tells Rampart that the victim has a "large discoloration on the chest", even though John never said anything about it to Roy, when he gave the victim's vitals over the HT.
Continuity mistake: Roy and Joanne are going to be on a TV quiz show. When the guys are eating soup and sandwiches, Captain Stanley asks Roy, "You nervous about being on the tube tonight?" However, Roy didn't do the quiz show that night, because later we see they're on their next shift, and Roy is getting into his uniform when Johnny says "Tonight's the big night," and Roy tells him that Dwyer will do the rest of his shift when he leaves early.
Continuity mistake: When Dr. Early and Marcia's father stand outside her semi-private room, number 104, we see treatment 4 is right beside it. There are two problems with this bizarre situation. First, when Dixie gave Early the lab results about Marcia's possible pregnancy earlier, treatment 2 is right beside treatment 4, not the semi-private room 104. Second problem is that when Early and the parents walk into Marcia's room, in the interior shots we can see that there's a perpendicular wall right beside the doorway to its left, where the hallway ends. (00:19:20 - 00:31:30)
Continuity mistake: During the fire at the apartment complex, when John and Roy go into the apartment to rescue the woman, they throw a coat over her, but then the explosion occurs knocking John and the woman unconscious. When Roy puts her over his shoulder and starts walking out the coat is not over her, but when he gets to the balcony she's covered by the coat, yet when the Pasadena fireman goes back for John, that coat is still lying on the floor.
Continuity mistake: At the start, there's a long shot of the Land Rover driving down a long stretch of road towards the camera and then passing it. That road, landscape, and mountains are very distinctive. As Roy, John, and Chet continue talking and driving, when they reach the scene of a traffic accident, Chet sets up a flare behind the Land Rover and another flare behind the pickup truck, then Chet sees a car coming from the direction which the Land Rover was headed. The problem is that the road/landscape/mountains shown earlier in the long shot of the Land Rover, which had been driving from the opposite direction, is the same that's shown here, as Chet tries to stop the car. Then to top it off, when Chet first notices the second car in the distance, it's coming from the opposite direction of the first car, but once again the view is exactly the same.
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 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 Roy and Johnny are with the boy who is trapped on the crane, Johnny buckles the life belt around the boy's waist, and in the following shots the belt's direction flips around to the opposite way repeatedly. Note its stitched leather and tongue buckles.
Continuity mistake: When Johnny finds the looter's leather bag with the stolen jewelry, the bag's large front flap goes from being flipped open facing Johnny to the opposite way, between shots.
Continuity mistake: When Brackett is first on the line with the vet, there's a closeup of Early checking the goat's heartbeat and we see the baby goat has been intubated. Brackett informs the vet of the goat's heart condition, so the vet tells Brackett to mask him with halothane and intubate. Then a minute goes by before the vet says that they should have him intubated by now, and when Brackett gets back on the line he says that the animal's intubated, even though we saw the animal already intubated in the closeup right at the start.
Continuity mistake: When Roy and Johnny are on the Coast Guard helicopter, responding to The Boat wreck with injuries off Catalina, there are a few interior shots of them that are flipped, while they're looking out the windows. The paramedic patches are on their left sleeves, but in the flipped shots the paramedic patches are on their right sleeves.
I'll Fix It - S4-E2
Continuity mistake: When Station 51 is at the scene of the oil well eruption, underneath a house which was built atop an abandoned oil field, just after Johnny tells Roy that he thinks the whole foundation is slipping, it cuts to a shot of the front porch as one of the porch columns (and part of another) breaks and falls. However, when the guys finally free the trapped man and carry him out, all the columns are upright once again.
Continuity mistake: When Roy tells Johnny to call Barbara, who heard something that he didn't even say at the movies, in the view from the kitchen Engine 51 is not in the apparatus bay which means everyone else is on a run, but when dispatch drops tones we hear Captain Stanley respond KMG365, and then see the engine parked in the bay.
The Promise - S3-E11
Continuity mistake: When Roy and Dr. Brackett are on 127's Snorkel while Johnny is trying to subdue Richard on the ledge, Brackett is not wearing any rings, but after loading Richard into the Stokes, when Brackett is grabbing hold of the basket in the closeup he's wearing two rings on his left hand, which vanish in following shots.
Continuity mistake: At the start, when Station 51 is dispatched to the fire and explosion, in the overhead wide shot we see Gage getting into the squad on the passenger side, but in the closeup Gage is in the driver's seat, and when they arrive at the scene it's DeSoto who's driving.
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.