Audio problem: When Roy and Johnny are with the sick dancer at the bar, Roy asks her if she's had anything to drink, and when we hear her say, "No, believe it or not, I don't drink at all, " her mouth says something else.
Continuity mistake: When John is in the lion's pit with the injured photographer, as he's loading her into the stokes his watch reads 3:40, but after they lift the stokes, when he's on the Biophone with Rampart his watch reads 12:15.
I'll Fix It - S4-E2
Visible crew/equipment: When Roy and John walk into the grocery deli, a few of the location shoot's array lighting are reflected on the glass door.
Visible crew/equipment: When Station 51 is dispatched to the industrial accident, with the big guy suffering from a chemically induced psychosis, the outline of the mic transmitter and wire are visible on the right side of the big guy's T-shirt.
Visible crew/equipment: When Station 51 is dispatched to the structure fire at the Kiddytime Toy Factory, while en route there's a shot from the POV of the top of Squad 51, and the reflection of the cameraman and the camera can be seen on the lightbar's chrome surface.
Continuity mistake: At the start, when Chet tacks the notices up on the bulletin board, the papers are tacked to the board differently between the closeups and wide shots.
Continuity mistake: At the apartment complex fire, after Truck 82 sets its outriggers, Engine 28 is right behind them with their supply line and duals laid out, but quite a few shots later Engine 28 is just pulling up behind 82, even though they were already there all set up.
Visible crew/equipment: At the start, when dispatch interrupts the mannequin practice with a structure fire, after the shot of Mike getting into his turnout, as Engine 51 rolls out of the apparatus bay, the reflection of array set lighting and two reflector screens are visible on the moving engine.
Visible crew/equipment: After the ambulance transporting the cardiac victim is involved in a traffic accident, when Roy contacts the dispatcher about the accident, the reflection of location set lighting is visible on the back window of the ambulance.
Continuity mistake: After the ambulance is involved in a traffic accident, when Marco shows up in Squad 51, he parks it parallel to a blue pickup truck and gets out of the squad, but in the next shot that pickup has suddenly vanished and the squad is now parked beside the sidewalk.
Visible crew/equipment: After everyone worked together on the cardiac arrest while the visiting administrators watched, at the nurses' station, when Johnny pours the coffee for himself, which Roy promptly takes, the reflection of set lights and equipment are visible in the very reflective chrome coffee pot.
Continuity mistake: In the waiting room, after Mrs. Evans complains that she's been waiting in the ER for two hours, Dixie walks up the hallway to Brackett, who's beside treatment 1, but after Brackett tells her about the visiting administrators, Dixie walks away headed toward the nurses' station. Yet in the next shot, Dixie is back at the opposite end of the hallway, by the waiting room, as she heads up the hallway before the man walks in with his injured son.
Continuity mistake: When the dispatcher sends Squad 51 on an 'unknown type rescue', the address is given as 2608, but when they're at the house the address is 4654.
It's How You Play the Game - S4-E19
Visible crew/equipment: When Squad 51 is en route to the car salesman who was bitten by a tiger, just before the squad turns into the car lot, the reflection of the filming vehicle is visible in the squad's spotlight.
Visible crew/equipment: After Station 51 rescues the novelist from his attempted suicide, when John accompanies the stretcher into the ER, the outlines of the mic transmitter and wire are visible on the back of his shirt.
Visible crew/equipment: When John and Roy tackle the hallucinating veteran, the outlines of the mic transmitter and wire are visible on the back of Johnny's shirt. As an aside, this scene was shot right outside Universal Studios, note the Black Tower/MCA Tower (which houses Universal's execs) when John tells the veteran that it's not a trick and to calm down.
Visible crew/equipment: When Roy and Johnny are with the guy who skateboarded and fell into the cactus bush, the outline of the mic transmitter is visible on Johnny's right side.
Continuity mistake: During the fire at the apartment complex, when Cap talks to dispatch over the HT and requests a second alarm, we see Roy put up that first ladder, but after the Pasadena engine arrives, Roy's just putting up that first ladder. Second, after Engine 82 extends their outriggers, it cuts to the flames and we see that three ladders are already against the building, but then there are only two up - the third will go up a few shots later (when Roy reaches the balcony) Third, we see Roy start climbing the ladder that's farther from the camera (the one Johnny's holding), but when Roy reaches the balcony, he's climbing up the ladder that's closer to the camera.
Continuity mistake: When Station 51 is dispatched to 'plane crash into a structure' the address is given as 1145 Delmar Drive, but when they arrive at the apartment complex, the 3-storey structure's address is 775.
Continuity mistake: When Herbert is leaving the station, there are shots of him on the left edge of the bay doorway, but in the shots of the guys looking at Herbert, particularly Chet and Marco who are standing in front of the squad, it's as if Herbert is crawling around towards the center of the bay doorway - their eye contact is way off.
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.