Visible crew/equipment: When Roy has trouble sleeping in the middle of the night, he gets up, and when he goes to the bathroom sink, there is a fully dressed crew member whose reflection is visible in the mirror, as he moves around and looks through the door window towards the actor. Then 51's tones drop, and in the next shot we see that all the other guys of Station 51 have been lying in their beds, before getting up and putting on their turnouts.
Visible crew/equipment: When Johnny is kneeling beside the injured guy in the bull corral, the bulging outline of the mic transmitter is visible on the back of Johnny's shirt.
Visible crew/equipment: When the guys are trying to lift the engine that fell on the mechanic, the outlines of the lavalier mic transmitters and wires are visible on the backs of Captain Stanley, Roy, and Johnny.
Visible crew/equipment: During the structure fire, after Roy finds the boy and his dog under the bed, when Roy heads down the stairs and then rushes back up, as he gets to the top of the stairs when the camera pans to the left we can see the barndoor set lighting, at the top left side of the screen.
Visible crew/equipment: After Roy gets chewed out by Dr. Sunderlin, when he and Johnny get back to the station, the spotlight on the passenger side is shiny and reflective, and set lights are reflected in it, then when the dispatcher drops tones for the next run, the spotlight has been sprayed with a dulling spray.
Visible crew/equipment: While en route to the mechanic whose engine fell on him, Mike is driving Engine 51, and seated backwards in the jumpseat behind Mike is Marco, who's wearing a helmet and his turnout, but in the shot from the POV behind Mike, we see the reflection in the rear-view mirror of the grey haired crew member, who is seated facing forward behind Mike.
Visible crew/equipment: After the guys get back to the station following the structure fire, when Roy and John discuss Roy's decision about possibly going to 98's, the lighting equipment is reflected in the driver's side spotlight.
Visible crew/equipment: After the structure fire, when Engine 51 and Squad 51 back up into the apparatus bay, the top of the set at the rear bay door can be seen.
Visible crew/equipment: When Squad 51 is dispatched to an 'unknown type rescue', after stopping at the side of the road to talk to the two guys, when the squad follows the motorbike, the corner of the crew's reflector screen becomes visible as the squad pulls onto the road and drives off.
Visible crew/equipment: After rescuing the man from under the engine, when Roy and Johnny load him into the ambulance, the reflections of the array set lighting are visible on the ambulance windows, as Johnny and Roy close the back doors.
Visible crew/equipment: When Roy and John are at the bull corral, trying to rescue the guy who's been gored, in the closeups of the bull we can see metal piping at the top, right corner of the screen, as the camera moves.
Visible crew/equipment: Amid the possible threat of fire from wind shift, when Johnny and Roy rescue the unconscious hiker (John Travolta), the bulging outlines of the mic transmitters are visible on the backs of Johnny's and Roy's shirts, and also the second hiker's shirt.
Visible crew/equipment: When Johnny and Roy are trying to get the boy's head unstuck from the small window opening, the bulging outline of the lav mic transmitter is visible on the back of Johnny's shirt.
Visible crew/equipment: When the guys are rescuing the little boy from the hole in the ground, the outlines of the mic transmitters are visible on the backs of Johnny's and Roy's shirts.
Visible crew/equipment: When Early walks over to the nurses' station after removing the boy's stuck finger from the steering wheel, the two actors' tape marks are visible on the floor, where Brackett stands and where Early is about to stand.
Visible crew/equipment: While en route to the boy who fell in the hole, Mike is driving Engine 51, and seated backwards in the jumpseat behind Mike is Marco, who's wearing a helmet and his turnout, but in the shot from the POV behind Mike, we see the reflection in the rear-view mirror of the grey haired crew member, who is seated facing forward behind Mike.
Visible crew/equipment: When Station 51 is dispatched to the movie studio, during the rescue of the injured stunt guys, the bulging outlines of the mic transmitters and wires are visible on either the backs or sides of Chet's, Roy's, and Johnny's shirts.
Visible crew/equipment: When the deputy arrives at the scene of the overturned tractor, the reflection of set equipment is visible at the hood of his vehicle, over the tire.
Visible crew/equipment: When Roy and Johnny are treating the man under the tractor, and subsequently Dr. Knott, the outlines of the mic transmitter and wire are visible on the back of Johnny's shirt.
Visible crew/equipment: At the nurses' station, Early asks Dixie about Carol, and when Dr. Knott pulls away in the wheelchair to go get Carol, the actor's tape mark on the floor is visible, precisely where Brackett had been standing moments ago.
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.