Continuity mistake: When Squad 51 is dispatched to the heart attack, when Roy opens the apparatus bay door John and Bonnie run underneath, and we can see that Engine 51 is not parked in the bay, but in the exterior shot of the squad pulling out the engine is in the bay.
Continuity mistake: When Station 51 is dispatched to the 'man trapped between two buildings', Roy is not wearing a watch when he and John head out on the lines between the buildings and also when they get back on the roof, but during the actual rescue while on the lines, both stunt guys are wearing watches on their wrists.
Continuity mistake: When Station 51 is dispatched to 'man down' at Hotel Potter, the address is given as 11876 Fishburn, between MacArthur and West 7th, but when the squad and engine are in front of the building, the corner street signs read Trenton and Parkview.
Heavyweight - S3-E5
Continuity mistake: At the structure fire, after Roy helps the pregnant woman down the stairs, when Johnny brings the O2 and blankets for her, we see that Johnny's wearing a SCBA tank with no markings. However, after Roy tells Johnny to take off, when Johnny hurts his shoulder, his tank has two large stickers - a white and a red.
Continuity mistake: When 51's guys are at the back of the station with The Old Engine, Johnny tries cranking it and his watch reads 5:20. Then after Squad 51 is dispatched to the heart attack, when Johnny's on the line with Rampart after defibrillating the patient his watch reads 11:15, then after administering atropine, his watch reads 2:30.
Continuity mistake: At the station, after Johnny has searched through a bunch of papers for the receipt for $8.42, when he gathers them up a yellow paper falls to the floor at his feet, just before Roy suggests putting them in alphabetical order. Then after Johnny stuffs the papers in an envelope and tosses the envelope in the garbage, the paper that fell on the floor has vanished.
Continuity mistake: When Johnny and Roy walk into Councilman Wilby's home, Wilby's wearing a buttoned up shirt and tie, and they place the O2 tank near his feet, but in Wilby's first three closeups the O2 tank is already behind the couch by his head and his shirt is unbuttoned with no tie, but in the wide shots Roy and Johnny haven't even made those changes yet.
Welcome to Santa Rosa County - S6-E10
Continuity mistake: During the rescue of the injured rock climbers, the stunt guys for Johnny and Roy are dressed similarly to their counterparts, except for their boots - the styles and colors are entirely different.
Welcome to Santa Rosa County - S6-E10
Continuity mistake: When Johnny and Roy find the slings, swami belts and carabiners in the sheriff's trunk, Roy takes an orange sling and Johnny takes a dark green sling, both take swamis and biners, and they start their climb. However, while they're climbing Johnny has an additional light green sling and a yellow chest harness, and Roy has an additional purple chest harness.
Welcome to Santa Rosa County - S6-E10
Continuity mistake: When Roy and Johnny are searching the sheriff's trunk and find the slings, swami belts and carabiners, Johnny takes hold of the green sling, but next shot it's suddenly swung diagonally around his neck and arm.
Welcome to Santa Rosa County - S6-E10
Continuity mistake: When Roy and Johnny are climbing to get to the injured climbers, once Roy reaches the boys he goes off belay in the closeup, but in the long shots (with the stunt guys) Roy is still locked off on the rope, and then we hear Roy say, "Johnny, give me a little more slack," though in the closeup he's not even attached.
Continuity mistake: During the warehouse fire, Johnny removes his turnout when Captain Stanley calls for the ambulance, then when the ambulance arrives John's wearing the turnout and one burn victim has the sheet over him, but then the turnout and sheet vanish, and as the ambulance attendants bring the stretcher, Johnny places the sheet on the victim, and in the overhead shot as Cap is told about Willy, Johnny's wearing his turnout again. The Biophone also keeps jumping from being beside Squad 51 to being between the victims.
Continuity mistake: When Johnny is doing overtime with Engine 8, dispatch sends the two guys of Squad 8 on an unknown type rescue and they leave Station 8, but when Johnny and Captain Stone walk back into the kitchen, Squad 8 is still parked in the apparatus bay.
Continuity mistake: During the fire at the chemical plant, the distinctively marked SCBA tanks that Captain Stanley, Johnny and Roy are wearing, when they're searching for the missing man, change when they're inside and then finally exit. Note the different stickers, or lack of stickers, on their tanks.
Continuity mistake: When the deaf woman is lying on the sidewalk having contractions, Johnny and Roy carry the pregnant woman on a cot into the market, and in the closeup of her face she is still lying on the sidewalk outside.
Continuity mistake: When Squad 51 is dispatched to a "man locked in a safe", at 1817 South Maplemoor, after the escape artist lets himself out of the safe, when Roy and Johnny head back to the squad the house address reads 4017.
Continuity mistake: At the refinery fire, when Johnny and Roy are on the tower with the collapsed worker, Roy throws the line down to Truck 127's Snorkel for their gear, and as Roy pulls it up, the gear is tied up quite differently depending on the angle of the shot.
Continuity mistake: When Kent (Bobby Sherman) is ready to leave Station 51, the guys are about to sit down to dinner and the table is full of food, plates, cups, utensils, etc, but when the tones drop for the refinery fire and everyone rushes into the apparatus bay, the table is seen behind them and it's bare. Also, the order in which the guys run out of the kitchen is completely different, depending on the angle of the shot.
Continuity mistake: When Dixie has her hand caught in the coffee dispensing machine, Roy gets it free, and when she pulls her hand out all of her nails on that hand are very short in the closeup, but in following shots her nails are quite long, as usual.
Propinquity - S3-E20
Continuity mistake: When the victims are loaded onto the second ambulance with Roy, after the original ambulance was hit by the car, we can see the license plate, Z99977, as Johnny closes the back doors. Then while en route to Rampart, the ambulance's make/model changes with plate, Z99953, then the make/model changes yet again, but still has the same plate, Z99953.
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.