Continuity mistake: Having trouble sleeping, Roy gets up in the middle of the night at the station, and when he puts on his turnout trousers his right suspender becomes unfastened at the front, and hangs down the back of his leg when he walks into the bathroom. However, in the next shot as he enters the bathroom the suspender is properly fastened.
Continuity mistake: When the guys begin to use the pulley system to lift the car engine off the injured man, the women stand to the officer's left (viewer's right), but in the next close-up it is switched, then back again in the wideshot.
Continuity mistake: After the guys lift the car engine off the man and Kelly maneuvers the car backwards, the same close-up of the officer and two women that was shown a few shots earlier is shown again, even though the car is now moving farther back.
Continuity mistake: After 51's guys rescue the man from under the fallen engine, when the ambulance leaves we can see only the name Mayfair is printed on its side, but en route to Rampart and when Roy has the ambulance stop and then go, there's a red cross printed on the surface above Mayfair.
Continuity mistake: During the structure fire, after the parents realize their son ran back into the burning house to get the dog, when the father tries to go after the boy we can see the man's wearing a striped T-shirt under his robe, but when Roy rescues both the boy and the dog, the father is now wearing a white T-shirt under the robe.
Continuity mistake: At the stationhouse, when the captain draws the diagram of the plastics company set-up on blackboard, the chalk drawing differs between shots.
Continuity mistake: Dispatched to the structure fire in the middle of the night are Station 51, Engine 95, Engine 105, and Truck 107, but on scene we see Engine 800, Engine 801, and also Engine 10, which is all footage from the first season's pilot episode "The Wedsworth-Townsend Act."
Continuity mistake: After Johnny moves the squad forward in the apparatus bay, he heads to the kitchen to get Roy, and in the next shot there's a rolling mop bucket with two mops that suddenly appear in front of the kitchen doorway.
Continuity mistake: When the guys are in the garage with the mechanic who had an engine fall on him, when Johnny contacts Rampart, Dixie presses the fifth button on the tape recorder, to record the transmission. Once they lift the engine off the mechanic, when Johnny contacts Rampart again, Brackett presses both the third and fifth buttons to record the transmission.
Continuity mistake: During the structure fire, when Roy walks into the burning house his SCBA cylinder has a large arrow sticker on it, but when he's in the house searching for the boy it's a completely different tank with two red stickers, then when Roy goes upstairs it's back to the original tank.
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.