Continuity mistake: When Roy finds Bonnie in the back seat of the wrecked car, Paula's luggage flips itself around and upright between shots.
Continuity mistake: When Squad 51 is dispatched to the heart attack, when Roy opens the apparatus bay door John and Bonnie run underneath, and we can see that Engine 51 is not parked in the bay, but in the exterior shot of the squad pulling out the engine is in the bay.
Continuity mistake: When DeSoto and Gage arrive at Rampart their black helmets are not hanging in Squad 51, when they enter the hospital. A moment later, when they're dispatched, both helmets are hanging in their proper place behind the seat. The distance between the squad and ambulance has also increased.
Continuity mistake: Just as Gage and DeSoto walk into Rampart's staff lounge, while discussing practical jokes, DeSoto is holding the handy-talkie in his right hand, but in the next shot the handy-talkie has vanished.
Continuity mistake: After Squad 51 is dispatched to "possible heart case" when Roy and Johnny walk into the house, we can see in the hallway and there's a bureau against the wall, but when they leave that bureau is gone and now there's a painting on the wall which we should have seen in the earlier shot, but it wasn't there.
Continuity mistake: At the start, when Roy finds Johnny in the squad reading '1000 Practical Jokes', Johnny's window is rolled down, and Roy places his arms over the passenger side door then leans in to talk to Johnny, but in all of Johnny's closeups Roy's arms are gone.
Cook's Tour - S1-E4
Continuity mistake: At the station, when Gage and DeSoto are eating the meal DeSoto prepared, the sealed milk container is suddenly open and then sealed again, between shots. It changes position as well.
Cook's Tour - S1-E4
Continuity mistake: When Squad 51 arrive at the house with the woman in labor, first there is a wideshot of the home and front yard. In the next close-up, the actual style of the house changes - note the roof and its three dormers, and bushes appear/disappear.
Cook's Tour - S1-E4
Continuity mistake: When Roy and Johnny are dispatched to the home of the woman who's in labor, the deputy shatters the door's pane of glass, but there is absolutely no glass on the carpet once they enter the house.
Cook's Tour - S1-E4
Continuity mistake: At Rampart, after delivering the baby, when Gage flirts with the two nurses the amount of soda pop in the nurse's bottle increases considerably between shots.
Cook's Tour - S1-E4
Continuity mistake: While Early is trying to remove a young boy's hand from a vase, in the shot from inside the room he's in treatment 3 with a windowless door, but when he steps into the hallway and asks Sharon for ice cubes he's at treatment 5 with a window on the door.
Cook's Tour - S1-E4
Continuity mistake: When Squad 51 is dispatched to the 'injury in alley', after John defibs the teenager, when he removes the diagnostic penlight from his belt holster, the kelly forceps fall out of the holster, but when he puts the penlight back into the belt holster the forceps are back in its place.
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: After Johnny and Roy bring the injured fireman to the ER, Emma walks up to them in the hallway to ask why they haven't put out the fire yet, and the large handbag hanging from her left arm is suddenly on her right arm when it cuts to the close-up.
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.
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.