Continuity mistake: When Johnny goes to the closet to get the mop, because he's 'latrine officer of the day', he gets hit by the phantom, and all the guys run out of the kitchen to see Johnny wet again, so when dispatch drops the tones they all head for the vehicles and Captain Stanley removes his jacket. Then next shot all the guys are running out of the kitchen, as if they were all still there, and Stanley is wearing his jacket.
Continuity mistake: When Johnny adjusts his IV after the snakebite, he tells Captain Stanley that he's ready to leave, and Chet is not wearing his helmet, but in the next shot as Marco heads for the squad Chet is wearing the helmet.
Continuity mistake: When Johnny is bitten by the rattlesnake he's holding the handie-talkie, but then he drops it and the HT falls to the other side of the car, as he hoists himself up against the car door. However, when he sits down on the ground he is still holding the handie-talkie.
Continuity mistake: At the rock quarry, after Johnny tells Captain Stanley that they need the Stokes and a jack, Johnny removes his helmet, and while Jason holds Johnny's helmet, Johnny tosses the rope below, but in following shots Johnny's wearing the helmet again.
Continuity mistake: When Dixie goes to Brackett's office to discuss Boot's temperature, Dr. Morton's crossed legs go from left over right, to right over left, repeatedly, depending on the shot.
School Days - S2-E14
Continuity mistake: On their way back from the rescue at the auto wrecking yard, in the close-up we see that Roy, Billy, and Gage are in the squad talking, but when it cuts to the exterior shot there are only two people in Squad 51.
School Days - S2-E14
Continuity mistake: When Roy walks into the kitchen at Station 51, Billy is on the couch studying, and in the overhead shot the pages of the open book that Billy is holding has illustrations, but in the close-up the pages have only text on them. Plus when Roy is in the doorway, you can see the truck (s) behind him, but when he turns to go back to bed, the garage is empty.
Dinner Date - S2-E10
Continuity mistake: When DeSoto and Gage are in the pool with the little girl whose arm is stuck in the drain, their shoes and pants are soaked. However, just after Gage gets off the Biophone, his shoes and pants are completely dry, and then when the pool has been mostly drained both DeSoto and Gage are dry.
Continuity mistake: When Gage sees Sheila in the hallway at Rampart while she's undercover, he stops her midway between treatment room three and four and they are standing face to face. In the wide shots of both of them and in Sheila's close-ups, she's standing right in front of the emergency fire hose glass cabinet, but in Gage's close-ups, he's standing directly in front of the door to treatment room four, farther up the hallway.
Continuity mistake: During the hotel fire, when Chet and Marco carry the gear-filled Stokes basket to the room where DeSoto and Gage are performing CPR, the drug box (black) and Biophone (orange case) reverse their positions in the Stokes basket between shots.
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.
The Wedsworth-Townsend Act - S1-E1
Continuity mistake: When Dr. Early hands the sousaphone with the bunny to Dr. Brackett, the instrument's mouthpiece faces Dr. Early, but in the next shot the instrument has flipped and the mouthpiece now faces Dr. Brackett. (00:50:50)
Continuity mistake: When Squad 51 heads out on the first call, Roy pushes the tool cart up against the wall map and the rear apparatus bay door is down, but in the next wide shot as they head down the driveway, the tool cart is gone and the rear door is raised all the way up.
Continuity mistake: During Roy and Johnny's rescue of the sky diver, the stuntmen are not wearing the fire department uniform shoes, they are wearing different shoes, and Roy's watch differs as well.
Loose Ends - S6-E12
Continuity mistake: When the police officer has chest pains, DeSoto places the ECG electrode discs onto his chest. In the close-ups, the right disc has a black lead head, but otherwise the right disc has a white lead head.
Dinner Date - S2-E10
Continuity mistake: When DeSoto and Gage arrive on scene at the traffic accident, the boy and his bicycle lying on the ground change positions between wideshot and close-up.
Peace Pipe - S2-E5
Continuity mistake: To send the drug box up to Gage and DeSoto on the scaffolding, Kelly loops the rope and ties a knot, but in the next shot, when Gage pulls it up it's a different kind of knot and loop.
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.
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.
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.
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.