Continuity mistake: After Johnny calls Dixie to inquire about Paula, when Johnny heads to the kitchen and asks which one of the guys wants to take Bonnie home for a couple of days, everything on the table keeps changing depending on the camera angles.
Continuity mistake: After the guys played cards, Johnny's low so he gets to do the dishes, and when Johnny proposes dealing another hand to see who gets the dog, cards appear/change on the table between shots.
Visible crew/equipment: In the treatment room, when Brackett gives the diabetic man an insulin shot, there is an actor's tape mark on floor at Dixie's feet, that we can see under the gurney.
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.
Visible crew/equipment: When Squad 110 pulls up to Chopper 14, the reflection of the reflector screen is visible on the squad's surface, and when all the guys climb into the chopper, the reflector screen's reflection is visible again.
Continuity mistake: Before 51's guys rescue the burglar trapped in the air conditioning duct, Vince's helmet has a highly polished and reflective surface, but when Vince reads the Miranda rights he's wearing a different helmet, it now has a matte surface.
Continuity mistake: When the man who doesn't speak English is lying in treatment 4, in Dixie's closeups she and the patient's 'friend' are standing in front of the wall with the white dispenser, but in the repeated wide shots of Early with the patient, that wall is seen behind Early and nobody is standing in front of it.
Visible crew/equipment: When Squad 51 is dispatched to the man trapped in the freezer, Johnny and Roy get into the squad, and the reflection of the large set lighting can be seen on the passenger door and vent window.
Visible crew/equipment: After Squad 51 arrives at the scene of the parachutist who's stuck in the tree, when Roy tells dispatch to have an engine respond to their incident, the reflection of array set lighting is visible on the squad's surface.
Visible crew/equipment: When John and Roy are tunneling through to the little girl trapped in the hole, they're in the second larger hole that has been shored up on all sides with wood (to keep it from collapsing), but when Roy points the chrome flashlight down the lateral hole Johnny's digging in, we can see in its reflection that the fourth wall doesn't exist, where the camera and lights are located.
Revealing mistake: On scene with the little girl trapped in the hole, when they shine the flashlight down the hole in the overhead closeup, it's too obvious that it's a doll with its arm raised up, plus the fact that we see plenty of space around the doll, contradicting the plot of the little girl being wedged in a tight space.
Revealing mistake: When Johnny and Roy are on the schooner, with the unconscious man hanging upside down from the mast's rigging, as they pull the man up the safety harness around the stuntman's ankle is visible.
Nurse's Wild - S1-E7
Revealing mistake: When John and Roy get back to the station and are discussing the cardiac patient they brought to Rampart earlier, the usually highly reflective passenger spotlight has been sprayed with a dulling spray, to temporarily dull the surface.
Nurse's Wild - S1-E7
Visible crew/equipment: When Roy and Johnny are at the house with the unconscious woman and barking dog, the set lights are reflected in the deputy's helmet.
Visible crew/equipment: When the truck driver who felt like his head exploded is in the treatment room with Early, Brackett and Dix, as the camera passes behind Brackett it casts a moving shadow along the two walls.
Visible crew/equipment: When Roy walks into the ER with the man who attempted suicide three ways, due to the low angle of the camera we can see part of the unfinished ceiling of the ER set, near the nurses' station.
Revealing mistake: When the boy is discharged from the ER and is reunited with his dog, John and Roy are standing near the squad watching the reunion, and the usually highly reflective surface of the passenger side spotlight has been sprayed with a dulling spray, to temporarily dull the surface.
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.
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.
Visible crew/equipment: On site at the construction accident, when the man with the back injury is lying in the stokes and being lowered with the ladder, a crew member/cameraman is visible on the landing at the lower right side of the screen.
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.