Continuity mistake: After Johnny and Roy find the motorcycle and its injured rider, Johnny wraps his arm/shoulder area, but the way it's wrapped - whether or not it's over the shoulder and/or at his waist, and the amount that's wound around his body, significantly differs between shots until they see Vince at the base station.
Continuity mistake: When Station 51 is being dispatched to the brush fire, there's black tape on the chrome trim of the squad's lightbar, but when Squad 51 arrives on scene the black tape has vanished. Then later at Rampart, after Brackett calls Roy a hose jockey, the black tape is back, but vanishes again when they rescue the injured looter.
Continuity mistake: While Squad 51 leaves the brushfire area with the looter (Tony Dow), when Johnny requests a water drop the helicopter pilot says that he's Copter 2, but the footage we see of the chopper flying overhead is of Copter 14 and Copter 10.
Continuity mistake: After Johnny and Roy get back to the fire's base station and hand the looter over to Vince, when they find Grover in the pen with the other dogs, Roy checks the dog's ID tag and in the two wide shots Roy's holding it with one hand while the other hand is up on the gate, but in closeup both of Roy's hands are holding the collar and ID tag.
Continuity mistake: When Roy and John leave the ER after the baby delivery, the base station dispatches them to the motorcycle accident, and in the next shot as the squad turns the corner, there are three people in Squad 51, we see Roy, Johnny and someone seated between them, while they're en route.
Continuity mistake: When Roy and Johnny get to the airport and start talking to the boy flying the plane, the clock reads 11:55, but when Frankie puts the oxygen mask on his father it's 12:15, then when Roy reassures the boy about flying straight and level, it's 12:40, and so on, even though it's really supposed to be only a few minutes between these shots.
Continuity mistake: When Gage plays the new game of poker with Kelly, the entire left side of the table is visible as the two begin. Next shot, DeSoto is suddenly sitting at that end, with an additional cup and saucer, opposite Kelly and Gage.
Continuity mistake: When Frankie lands the Cessna, the red seatbelt is in place behind him. When Gage and DeSoto reach the plane that seatbelt has been pulled across the side wall, over the door, with its end pushed between the windshield and ceiling. Done deliberately so Gage can enter that door unhindered.
Continuity mistake: When Squad 51 is dispatched to the attempted suicide, the dispatcher states that he's in apartment 2A, and when Roy and John arrive at the scene the police officer also says he's in apartment 2A, but when they get to the second floor they pass apt 2A and go to the apartment at the end of the hall.
Continuity mistake: When dispatch calls on a possible overdose, Gage puts on his turnout coat and gets into the squad, but as they drive away from the station house Gage is not wearing that jacket, and when they reach their destination he is once again.
Continuity mistake: When the firemen cover the tanker in foam, the paramedics and ambulance drivers extract the tanker driver and place the patient on the stretcher they all get covered in foam, including the stretcher. Next shot, the stretcher, the patient and the men are all clean.
Continuity mistake: When Frankie flies the Cessna, he places an oxygen mask on his father. The style of the mask changes from either a round, large type, to a smaller, square type.
Continuity mistake: At the airport, when Roy is being told about young Frankie flying the airplane because his father had a heart attack, we see that Roy's wearing his uniform shoes, but in the shot of Roy following the airport employee while they're running into the building, Roy (perhaps his double) is wearing tan work boots. The uniform shoes are back when Roy uses the grounded plane's radio mic.
Continuity mistake: At the scene of the traffic accident, after removing the injured driver from the overturned tanker, when Roy gets the Biophone from the squad and John runs over to the ambulance stretcher, notice the red rectangular material adhered to the front of Engine 51's cab. We know that Engine 51 does not have a license plate on the front of its cab, and during this scene Engine 51 is being played by the real Engine 127, whose license plate is at the front of its cab.
Continuity mistake: When Roy brings the injured tanker driver into the ER, the attendants wheel the stretcher down the hallway passing treatment 3, and after Roy asks Brackett and Early a pointed question about the trucker's condition, the doctors also walk down the hallway passing treatment 3, in the direction of the nurses' station. But then we see that Early and Brackett are with the patient in treatment 3, which is right beside the ER's receiving entrance.
Continuity mistake: When 127 hoses down the underside of the overturned trailer, we should be able to see the water spray while John and Roy try to get to the trapped driver in the cab, but we don't even though we hear the audio of the hosing.
Nurse's Wild - S1-E7
Continuity mistake: When Gage rides in the ambulance with the cardiac and gunshot patients, the windows between him and the drivers are opaque glass. In the next exterior shot, as they drive down the street, those interior windows are transparent.
Nurse's Wild - S1-E7
Continuity mistake: While Early, Dixie, and Brackett are talking in the hallway about going to lunch, Ellen comes out of the treatment room (opposite receiving) next door to treatment 2 and calls to Dr. Early, but when Early and Ellen walk back into that room, they are now in treatment 3, which is directly opposite from treatment 2.
Nurse's Wild - S1-E7
Continuity mistake: At the liquor store, when Roy is seeing to the store owner with chest pains, Roy snaps a black headed lead onto the disc, but in the man's closeup it's a white headed lead. Then when Brackett orders countershock, the lead is back to black.
Continuity mistake: When John first explains how to rescue the little girl in the hole, he wraps his left hand around his right wrist, but in the next shot it's his right hand that's around his left wrist.
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.