Continuity mistake: When Johnny and Roy are in the water trying to rescue the the man trapped in the submerged car, they are wearing water-type shoes, not their regular uniform shoes.
Visible crew/equipment: During the rescue of the man trapped in the submerged car, when 110's Captain is handing John and Roy (who are in the water) the cave-in gear's air hose, in the shots from behind him on deck, the reflection of a crew member wearing white pants can be seen on the chrome surface beside him.
Visible crew/equipment: The first three times that Squad 51 is dispatched to 1012 Clinton Drive, before they leave the apparatus bay, we can see the reflections of set lighting in the squad's spotlights, particularly the driver's side.
Revealing mistake: During the rescue of the man trapped in the submerged car, when 110's Captain hands John and Roy (in the water) the special cave-in gear's air hose, then when he opens the O2 valve and also when he revs up the jaws, we see that The Boat's port side has a taught line tying it off at the stern in the closeups (seen from The Boat's deck) to prevent it moving, but in the long shots there is no line.
Continuity mistake: When Engine 51 rolls up to the Teal house and quickly enter, we can see the flames inside through the living room window - no shade blocks the view, but in the next shot from the living room, the shade is now pulled halfway down the window.
Continuity mistake: During the fire at Rampart's lab building 8K, when Roy and Johnny are placing the salvage covers on important records, Johnny is wearing the SCBA tank with the two red stickers and Roy's tank has a large arrow sticker, but when they exit the building their tanks have switched.
Continuity mistake: When Brackett asks Early to see the patient (Jamie Farr) who belongs to an occult group and has no function in his right arm, Brackett's wearing a blue/white striped tie, Early's wearing a red/blue striped tie, and Dixie's wearing a uniform dress. However, in the previous and following shots, Brackett's wearing a blue/red/gold patterned tie, Early's wearing a solid black tie, and Dixie's wearing a 2-pc nursing uniform with pants.
Visible crew/equipment: After the explosions at Rampart, when Dixie runs out of the hospital with the gurney and reaches Brackett, the outlines of the mic transmitter, wire, and even the dark strap (that holds the lav transmitter) around her waist are visible on the back of Dixie's uniform.
Visible crew/equipment: When Johnny is taking Boot's temperature, the uncovered top of the set is visible at the corner behind Marco and Captain Stanley.
Continuity mistake: After Brackett gets off the phone with Dr. Meier, he walks back to treatment 1, and when Brackett speaks to Morton about the patient being on warfarin, the stethoscope around Brackett's neck vanishes in his closeups, and reappears in wide shots.
Other mistake: After Marco offers Boot the ground beef while the guys are trying to figure out what's wrong with the dog, the tones drop and we hear the dispatcher say, "Station 51, Engine 95, Foam 27," but the odd subtitles read "Engine 95, Phone 27." Subtitles from Universal Studios 2010 DVD.
Other mistake: When Brackett asks Early to see the patient (Jaime Farr) who claims he can't move his arm because of a curse, Early walks into treatment 5, but in the shot from inside the room we can see that they're in treatment 2.
Other mistake: When Roy and Johnny are with the woman whose hand is caught in the mixer, we can see tape on the side of the stand mixer (Sunbeam) as well on the food containers, covering all their brand names.
Continuity mistake: When Roy and John are at the inexperienced cook's apartment the second time, when her fingers are caught in the mixer, she's wearing a blue/white striped dress and a watch on her left wrist, but in the closeup as she reaches for the boiling pot her watch is gone and it's a white sleeve on her arm.
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.
Continuity mistake: After Roy frees the woman's fingers from the mixer, they use the yellow dish towel and she tosses it into the sink, but in the next shot when Johnny suggests serving Mai Tais, the yellow towel is suddenly back in her hands and the white towel is now over Johnny's shoulders.
Continuity mistake: After the explosion at Rampart's lab, Brackett and Dixie head out receiving with two gurneys carrying emergency necessities, Dixie's gurney has light blue trim and Brackett's gurney has a double rod trim at the top, but outside Dixie's blue trim gurney has vanished, hers now has double rods and Brackett's has single rod trim.
Continuity mistake: When Station 51 is dispatched to the 'stove fire' it's nighttime, but when they roll up to the apartment complex it's still daylight.
Continuity mistake: After Station 51 responds to the stove fire and puts it out, the frustrated woman tosses her handbag over her shoulder with the buckle behind her, but in the next shot the handbag has flipped over with buckle at the front.
Visible crew/equipment: When Johnny is bending down while checking on Boot, who's hiding under the bed again, and also as he and Roy walk out of the dorm when Station 51 is dispatched to the 'stove fire', the outline of the lav mic transmitter is visible on the back of Johnny's shirt.
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.