Continuity mistake: When Dr. Early and Dr. Morton are in the treatment room with Mr. Jefferson, Morton's stethoscope is draped over his shoulder with the ear tubes at his back in the wide shots, but in the closeup the ear tubes are lying in front.
Continuity mistake: When Roy and Johnny are in the apartment, just as Mr. Jefferson mentions that Shorty brought in hot tractors, it cuts to a closeup of Roy who is not wearing a stethoscope, but in the next shot the stethoscope is suddenly around Roy's neck.
Continuity mistake: When Station 51 is dispatched to the 'unconscious female in a car' it's 8:20, but when Roy is on the Biophone with Rampart his watch reads 11:05, and John's watch reads 12:30 as he's checking the woman.
Continuity mistake: When dispatch drops the tones at night, waking all the guys up, notice that Marco's mustache has vanished, though it reappears later. Additionally, they all get into their boots, turnout trousers, only white T-shirts, suspenders, and grab their dark jackets, but when the bay door opens they're dressed in their uniforms as they respond. Then at the fire they're in the turnout trousers, and Johnny and Roy are wearing the uniform shirts when working on the burn victim.
Visible crew/equipment: When Roy leans over Captain Stanley after he was electrocuted, the outline of Roy's mic transmitter is visible on the back of his shirt.
Continuity mistake: When Roy and Johnny get to the address in the canyon that has overgrown weeds and shrubs, in violation of county ordinance, Johnny is empty-handed when they knock on the front door, but when they're told to come in Johnny is now holding the large fire-code violation ticket booklet.
It's How You Play the Game - S4-E19
Visible crew/equipment: When Johnny and Roy get the car salesman out of the car with the tiger, and when Johnny gets into the ambulance with him, the outline of the mic transmitter is visible at the side of Johnny's shirt.
Peace Pipe - S2-E5
Continuity mistake: When Brackett and Officer Vince are in the ER with the drunk driver, Dixie cuts the gauze bandages from around his head, and they lie bunched up on the gurney beside him, but in the overhead shots as Brackett draws his blood the bandages are still around his head.
The Tycoons - S5-E23
Character mistake: Chet states that he stops for breakfast at the hot dog stand. When Roy and John are eating there, a sign in the background says it opens at 11:00.
Continuity mistake: After Roy gets his leg bandaged at Rampart, as he and Johnny exit to their truck, they suddenly get haircuts. Looks like a shot from an earlier season.
Other mistake: The Battalion chief assigns tanker 76 to assist engines 51 and 60 with the rescue at the canyon. However, it is tanker 44 that arrives.
Deliberate mistake: At the very end of the episode, Roy and John are walking back to the unit and the driver side mirror appears to be parallel with the unit. The driver would see their own reflection at best.
Continuity mistake: When the guys come out and are watching Herbert leave, they are all in their turnout pants. Stoker is wearing turnout pants with the blue jacket zipped. When the tones drop for the call, the guys go to the vehicles and grab their turn out jackets and Stoker is in his blue pants and blue shirt pulling on a turnout coat. Not turnouts and no navy jacket.
Continuity mistake: When Roy and Johnny go to get on the helicopter they are with only the orange bio-phone, but after The Boat brings them back to the shore you see them running to the helicopter with the patients, and they pick up their large black trauma box. They didn't have it with them when they left.
Continuity mistake: When transporting the heart attack victim from the plane the ambulance starts as a Ford and ends as a Chevy.
Continuity mistake: When Gage goes into the lion enclosure you see the lion up high roar with sharp white teeth but the other shots the lion is now an older lion with broken rotten looking teeth.
Continuity mistake: When Brackett leads Mr. Teal to his wife they walk into treatment 2, which has a windowless door, but in the shot from inside the room they're actually in treatment 1, which has a window on its door.
Continuity mistake: After winning the semi-finals against 16, when Chet walks into the kitchen in the closeups John's holding the newspaper filled with photos on the page facing out, but in the wideshots an entirely different page faces out. (00:45:00)
School Days - S2-E14
Continuity mistake: When Dr. Temple's assistant is running to the door to let the ambulance attendants in, as we see her exiting the room where the bookcase has fallen over, her slip is showing, but the very next room we see, her slip is properly under her dress.
Continuity mistake: Immediately before the man rescued from the sewer fire is brought into the hospital, the shot shows squad 51 and two ambulances in all three spots in the ambulance bay, however neither ambulance is the big box Mayfair type that was at the rescue scene. (00:11:20)
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.