Character mistake: When Brackett and Early are dealing with three squads at the base station at the same time, Squad 51 has two victims - father and son, Squad 18 has a pulmonary edema, and Squad 36 has only one bicycle rider with severe head injuries, because the second rider died, so the total is four out of five being dealt with. Back at the station, after Johnny asked Dixie about the condition of all the victims, he tells Roy that the father and son are both responding, so is Squad 18's pulmonary edema, and for Squad 36's bike accident, that "both" are coming out of the coma, which totals five victims. Then Roy responds, "Four saves out of five victims. That's pretty good." Johnny should not have said, "both" since it was just one rider.
Character mistake: Days after Drew's death (Roy and Johnny had two days off after Drew's death), during the meeting that Brackett has with the four paramedic units, one of 59's guys asks, "What do we do when we have this overload situation on the same frequency? Two squads, like 51 and us today?" The situation with the frequency did not happen "today" as he said, it happened at least three days prior.
Character mistake: In the morning, when Roy and Johnny are by the lockers, talking about what Johnny did on his days off, Roy tells Johnny, "I came on this morning, guys on A shift told me that they had a meeting with Brackett at Rampart yesterday." It could not have been "A shift" because Roy and Johnny work the squad for A shift, with Captain Stanley and the rest of the guys. And we know that Roy and Johnny didn't switch shifts with B or C, since the rest of A shift are there with them, working the engine that day.
Character mistake: After the cat has her kittens, when Squad 51 is dispatched to the 'man trapped in boating accident', we hear Captain Stanley respond, "Station 51, KMG365," even though his response should have been, "Squad 51, KMG365," since it's only John and Roy that were dispatched, not the entire station.
Heavyweight - S3-E5
Character mistake: When Johnny first contacts Rampart via landline about the stabbing victim, while Roy is across the street with the gunshot victim, Brackett gets on the line and asks Johnny if he started an IV, to which Johnny replies no, then he asks what the vitals are. Johnny has only just made contact with Brackett about this patient, so Johnny could not have started an IV without the doctor's consent, Brackett knows this. This goes against established procedure.
Character mistake: When Johnny and Roy respond to the 'possible injury at the horse ranch', after the guy who was knocked unconscious gets back on the horse, Johnny tells Roy, "Why don't we stick around for another few minutes, unless we get another call." They did not contact the dispatcher that the squad's available, so they would not even be dispatched to another call, since they're already on that run.
Character mistake: When Johnny is about to tell Roy what the problem is, the dispatcher drops tones and says "Station 51, Engine 36, Truck 116, small aircraft in trouble.," but when Captain Stanley responds we hear him say, "Squad 51, 10-4...," even though he should have said, "Station 51, 10-4...," because both Engine 51 and Squad 51 were dispatched.
How Green Was My Thumb? - S3-E17
Character mistake: When Johnny is filling the radiator on the squad, he pays close attention to not over fill. After Chet comes in and asks a question to Roy, the alarm goes off, Johnny closes the squad hood, without pulling the radiator cap on.
Inventions - S3-E22
Character mistake: Dr. Brackett calls Dr. Early "Jim." In the show, Dr. Early's first name is "Joe."
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.