Visible crew/equipment: When Gage and DeSoto are on their first run (the mother-in-law), they phone Rampart's base station. When Dixie opens the door to answer the call, her mark (strip of black tape) is visible on the floor just as she steps on it.
Visible crew/equipment: When Johnny tells dispatch to respond Engine 51 to Oceanland Park, as Engine 51 pulls away from the curb, the shadow of production equipment is visible on the engine's surface and the street.
Visible crew/equipment: When Station 51 is dispatched to the possible heart attack, just as Squad 51 is leaving the apparatus bay and passing the exterior glass doors to Captain Stanley's office, the reflection of the location's array lighting is visible on the glass doors.
The Tycoons - S5-E23
Visible crew/equipment: After inspecting Davey's Dogs, when John and Roy head to the squad discussing how only a total idiot would buy the stand, the reflection of the location's array lighting is visible on the squad's surface, and the reflection of the camera dolly can be seen on the chrome spotlight.
The Tycoons - S5-E23
Visible crew/equipment: When Roy and Johnny get back to the station talking about the ten fire inspections and two runs, the moving shadow of the boom mic is visible on the cabinets above Chet.
The Tycoons - S5-E23
Visible crew/equipment: During the fire at the chemical plant, a couple of shots after we see Captain Stanley walking between Roy and Chet as they're manning two hoses on the roof, we see a shot of Engine 15 as it heads toward the camera and then drives past it, and the reflection of array lighting is visible on the engine's surface.
The Tycoons - S5-E23
Visible crew/equipment: Just as Roy brings the victim with the heart wound into treatment 2, in the upper left corner we can see the moving shadow of the boom mic.
Visible crew/equipment: When Station 51 is dispatched to the motorcycle accident, just as Engine 51 rolls out of the apparatus bay, the reflections of array lighting and two reflector screens are visible on the side of the engine.
Visible crew/equipment: At the scene of the motorcycle accident Johnny contacts Rampart, and when Dixie opens the door to the base station booth and walks in, the outlines of the lavalier mic transmitter and wire are visible on the back of her uniform.
Visible crew/equipment: At the site of the vehicle accident, the outlines of the lavalier mic and wire are visible on the back of Roy's shirt, particularly when he's with Eddie as his father's being taken in Copter 10 to Rampart.
Visible crew/equipment: After Engine 51 and Copter 10 are dispatched to the "traffic accident with injuries" Engine 51 is instructed to switch to frequency 3, and when Copter 10 takes off with Brackett, the moving shadow of the filming helicopter is visible near the shadow of Copter 10 chopper. (00:09:10)
Visible crew/equipment: After landing at the base camp, when Brackett and the others walk away from Copter 10 we hear the comment, "The coffee's lousy but the food's great," then we get a bird's-eye view of the base camp, and can see the moving shadow of the filming helicopter at the lower right corner of the screen. (00:06:20)
Visible crew/equipment: After the two guys fill the fish tank with water, when they walk out of Brackett's office Dixie walks in, and as she comments that the tank is classy, the actor's tape mark is visible at her feet, in front of Brackett's desk.
Visible crew/equipment: When the dispatcher drops tones for the trapped victim of a traffic accident, just after we hear Captain Stanley say, "KMG365," we can see movement between the front passenger and driver seats of Engine 51, precisely where the camera is. Captain Stanley is still at the radio base station and Mike hasn't opened the door yet.
Visible crew/equipment: After Captain Stanley and Roy get the trucker out of the wrecked cab, when Stanley takes his pulse, the outlines of the lav mic transmitter and wire is visible on the back of his shirt.
Visible crew/equipment: When Gage and DeSoto are driving away from Rampart, discussing DeSoto's possible purchase of a new house, dispatch calls about a traffic accident. In this exterior closeup shot of Squad 51, the reflection of the camera's flatbed vehicle is visible on Squad 51's red surface.
Visible crew/equipment: When Gage and DeSoto are stuck cleaning the squad again before The Inspection, Captain Stanley walks in and the actor's T-mark is visible on the floor just before he steps on it. Additionally, when Stanley walks away, and Chet catches up to him, another T-mark is visible on the floor near the doorway.
The Lighter-Than-Air Man - S5-E8
Visible crew/equipment: When Crockett leaves Medford's room with the glass that Medford drank from, there's a mirror over the sink, and in the mirror's reflection we can see the camera's moving shadow on the wall, right beside Crockett's reflection.
Visible crew/equipment: When the dispatcher drops tones for the 'possible heart attack', just as we hear Captain Stanley respond, "KMG365," we can see movement between Engine 51's front driver and passenger seats, where the camera is located. Captain Stanley is still at the radio base station and Mike hasn't opened the door yet.
The Tycoons - S5-E23
Visible crew/equipment: When Squad 51 is dispatched to the baby with difficulty breathing, in the wide shot when the squad pulls into the driveway and heads to the front of the house, the cameraman steps out of the shadows on the right side of screen and walks toward the squad (then it cuts to the footage he was shooting), and in the next shot as the moving camera closes in on the squad in front of it, the cameraman's shadow becomes visible on the tree and house.
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.