Smoke Eater - S4-E16
Continuity mistake: While John and Roy are treating the possible MI, when John's on the Biophone with Rampart his watch reads 5:10, but after the patient goes into V-fib John's watch reads 2:45.
Other mistake: All the guys are sitting around the table in the day room discussing how smart kids are, and when the tones drop we hear the dispatcher say, "Squad 51 possible assault victim," yet all the guys from the engine company rush off and head to the rig in the apparatus bay, even though only Roy and John were called.
Daisy's Pick Blind Date - S4-E7
Revealing mistake: When John and Roy bring the hypothermic patient into treatment 3, Morton uses the laryngoscope, but the problem here is that when it's placed we can see that the laryngoscope is actually at the side of the patient's face.
Other mistake: When Johnny brings the officer who was shot into the ER, as soon as he's loaded onto the gurney Carol takes his BP then tells Brackett his BP, but she also tells him that his pulse is 120, even though she never took his pulse. Additionally, when Morton places the blood vials on the tray and tells the nurse, "I want this sent to the lab STAT, type and cross match, and CBC and differentials STAT," due to the urgency of the situation, but the nurse doesn't leave, she just stands for the rest of the scene.
Continuity mistake: During the structure fire at Kiddytime Toy Factory, when the man is downed by an electrical shock, Johnny pulls out the defibrillator and Biophone from the squad, and in Johnny's closeups with the Datascope we can see that its center knob on the right is missing, but in the Datascope's closeups the knob is back.
Continuity mistake: Roy and Joanne are going to be on a TV quiz show. When the guys are eating soup and sandwiches, Captain Stanley asks Roy, "You nervous about being on the tube tonight?" However, Roy didn't do the quiz show that night, because later we see they're on their next shift, and Roy is getting into his uniform when Johnny says "Tonight's the big night," and Roy tells him that Dwyer will do the rest of his shift when he leaves early.
Visible crew/equipment: When Station 51 is dispatched to the traffic accident, while en route there's a shot from the POV of the top of Squad 51, and the reflection of the cameraman, who's wearing a yellow shirt, is visible on the lightbar's red dome and chrome surface.
Visible crew/equipment: At the apartment complex fire, when Truck 82 raises its ladder, we can see the second floor balcony behind the rig, and there is a crew member wearing a long sleeved blue shirt and white hat, standing in front of the corner apartment, where there should be smoke pouring out, but there is none. The reflection of the cameraman/crew member wearing a white hat also becomes visible in Truck 82's wing mirror.
Continuity mistake: During the fire at the apartment complex, when John and Roy go into the apartment to rescue the woman, they throw a coat over her, but then the explosion occurs knocking John and the woman unconscious. When Roy puts her over his shoulder and starts walking out the coat is not over her, but when he gets to the balcony she's covered by the coat, yet when the Pasadena fireman goes back for John, that coat is still lying on the floor.
Revealing mistake: After Station 51 is dispatched to the 'plane crash into a structure', when Engine 51 pulls over to lay the dual lines at the hydrant, we can see up the block on the left, the back side of the apartment complex where they are headed, and most of the back windows are boarded up. The following scene takes place at the front doors of those apartments, where people supposedly live. The show used some real locations (not just Universal's sets) where there had been real fires, to film carefully controlled fire scenes.
Camera Bug - S4-E10
Other mistake: When Engine 51 and Squad 51 first roll in during the school fire, we see the burning building has a flat roof. After Johnny and Roy have rescued the unconscious boy from the classroom, there is a closeup of two firemen standing on a slanted, tiled roof with a hose, which is from episode 3x2, "The Old Engine", just before 17's Captain Harmell falls through the warehouse roof.
Other mistake: After the apartment house fire, the restored old engine is trashed by a hail of bricks. Later, when Roy and Johnny are talking about who won the first prize, The Old Engine in the back looks nothing like it did when it was wrecked on the street. Also, the shot of The Old Engine that's shown here, is actually the same footage shown in season 3, "The Old Engine", with the lighting dimmed to signify nighttime, when at the end of the episode Roy and Johnny decide to keep it. Note the exact same broken pieces of windshield, tires, hubcaps, dirt, shadows, everything.
Continuity mistake: When Brackett is first on the line with the vet, there's a closeup of Early checking the goat's heartbeat and we see the baby goat has been intubated. Brackett informs the vet of the goat's heart condition, so the vet tells Brackett to mask him with halothane and intubate. Then a minute goes by before the vet says that they should have him intubated by now, and when Brackett gets back on the line he says that the animal's intubated, even though we saw the animal already intubated in the closeup right at the start.
Revealing mistake: When the Bengal tiger is on the roof, just after the officer warns, "If that cat tries to leave this roof, he's dead before he hits the street," there is a closeup of the tiger and the empty landing below the billboard. A few shots later, after Les steps on the glass, there are pieces of meat scattered on the landing below the billboard, so the trained tiger will jump onto it.
I'll Fix It - S4-E2
Continuity mistake: When Station 51 is at the scene of the oil well eruption, underneath a house which was built atop an abandoned oil field, just after Johnny tells Roy that he thinks the whole foundation is slipping, it cuts to a shot of the front porch as one of the porch columns (and part of another) breaks and falls. However, when the guys finally free the trapped man and carry him out, all the columns are upright once again.
Continuity mistake: When the guys decide to eat lunch before resuming CPR practice, Chet puts the CPR mannequin upright beside the fridge. Chet's wearing his regular black shoes, and the CPR mannequin is wearing white sneakers. However, in the close-up of The Mouse crawling under the fridge, the leg we see near The Mouse is wearing a brown rubber firefighter's boot.
Visible crew/equipment: After Johnny cuts the cable holding Lorenzo's locker, when Johnny climbs down the outlines of the mic transmitter and wire are visible on the back of his shirt.
Visible crew/equipment: When Roy and Johnny are with Vic (Adam West) trying to outrun the bear, the outlines of the mic transmitter and wire are visible on the back of Johnny's shirt.
Visible crew/equipment: When Johnny and Roy aid the woman who is stuck in the small opening of the dog door, the bulging outlines of the mic transmitter and wire are visible on the back left side of Johnny's shirt.
Visible crew/equipment: When Johnny asks Dixie for advise on how to talk to fifth graders, Dixie walks out from behind the desk at the nurses' station, and as they walk up the hallway the actor's tape mark is visible on the floor, where she had been standing and where Morton is about to stand.
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.