Visible crew/equipment: During the emergency surgery on the boy who was shot with a pellet gun, the wired microphone that is taped to Brackett's shirt with black tape and hidden under his white coat becomes visible when he puts the gloves on, and during the surgery.
Other mistake: When Johnny and Roy are at the house with the three wild, obnoxious boys who terrorized their sitter, Johnny takes her blood pressure with the cuff, while Roy takes her respiration and pulse as he looks at his wrist for the second-hand countdown, but the problem is that Roy isn't even wearing his watch, and the actor has a bizarre look on his face when he looks at his naked wrist. He then tells Johnny that her pulse is 140 and respiration is 35. When the ambulance attendants arrive, Roy is wearing his watch. If he had his watch he should have used it for the pulse and respiration.
Visible crew/equipment: After Station 51 is dispatched to the back hoe that flipped over trapping the driver, when Roy gets out of Squad 51 upon arrival, the reflections of a crew member and part of the camera are visible on the squad's door.
Visible crew/equipment: When Johnny and Roy walk into the staff lounge, to join Morton, Brice, and the other paramedics for the tape review meeting, the two actors’ T-marks are visible under the table, where he and Roy are standing.
Visible crew/equipment: When Johnny is reading out loud from a transcript, while he and Roy head to the tape review meeting in the staff lounge, just after they turn the corner, the three tape marks are visible on the floor. One is for Johnny near the door, and two are for Roy - the first mark for where he originally stands and the second one for when he walks back over to Johnny.
Visible crew/equipment: When Roy, Johnny, and Morton leave the staff lounge talking about Brice, they stop at the nurses’ station, and when Johnny and Roy walk away, the two actors’ tape marks are visible where Morton is still standing and where Roy had just been standing. Additionally, the outlines of the lavalier mic transmitters are visible on the left sides of Roy's and Johnny's shirts, particularly when they stop at the fountain.
Visible crew/equipment: When the woman runs into the ER screaming that her son accidentally shot himself, as she and Brackett race to the door, the actor's black tape mark is visible on the floor behind her, where she had been standing.
Visible crew/equipment: When Brice and his partner see Brackett and he starts talking to Brackett about the regulations regarding reporters, as they walk down the hallway the actor's tape mark is visible on the floor behind them, where Bracket had been standing.
Visible crew/equipment: When the boy who was shot by a pellet gun is wheeled into the treatment room, at the start of the next shot there is a closeup of the domed surgical light fixture, which provides a reflection of crew and equipment, albeit upside-down.
Visible crew/equipment: When the injured father and daughter are wheeled into the treatment room, an actor's tape mark is visible on the floor under the daughter's gurney, and another tape mark is visible on the floor under the father's gurney.
Other mistake: When Roy and Johnny are waiting in the staff lounge for Dr. Morton, Johnny opens the newspaper's sport's section and sees Brice's picture. In the page's close-up, two paragraphs in two unrelated articles are the same, and they also have nothing to do with the title of the articles. The first paragraph begins, "Thus at this conference all our governments..." and the second begins, "Of no less importance was the common recognition..."
Continuity mistake: After watching Brice's interview on TV, all the guys sit down at the table to eat dinner, and there is one jar of mustard on the table. When Roy smears mustard on his bun, Chet motions for the mustard with his eyes and Roy slides it over to him to use, but in the next few shots the open jar of mustard is either in front of Roy or Chet, depending on the angle of the shot. The milk container keeps switching places as well.
Continuity mistake: While Brackett and Morton are working on the boy who was shot with a pellet gun, when Morton is about to intubate the boy, we see that the O2 mask has been removed from his face and lying behind the boy's head, but when Morton hooks up the hose to the ventilator, we see the O2 mask and its elastic are still around the boy's neck. Then when Brackett says, "Prep him," the mask is gone.
Visible crew/equipment: At the site of the back hoe accident, after the ambulance arrives, when the father of the girl who's trapped under the back hoe gets up and starts walking away from Roy, the reflection of set array lighting is visible on the surface of Squad 51.
Visible crew/equipment: During the back hoe rescue, the outlines of Johnny's and Roy's mic transmitters alternate between being visible at the front and sides of their shirts.
Continuity mistake: When Johnny and Roy are in the staff lounge waiting for Dr. Morton, Johnny's holding the newspaper's sports page, and in the page's close-up, there is a large picture of Brice centered between two columns of articles. However, when Johnny's talking to Roy and Dr. Morton, that page is entirely different even though he hasn't turned the page.
Other mistake: When dispatch drops tones for the fire at Graymar Plaza, we see Engine 8 rolling out of the apparatus bay and heading down the street, but the problem here is that this footage of Engine 8 is from season 5, episode "Equipment", when Johnny was at Station 8 doing overtime, and we can actually see Johnny sitting there on Engine 8 as it rolls by.
Continuity mistake: When Charlie asks Dave how Sue is, Charlie has an oxygen mask on with the elastic around his head, but after Dave tells Charlie that Sue's fine and that Johnny's got her on O2, in the wideshot as Dave walks away the oxygen mask has vanished from around his head.
Continuity mistake: When Johnny tells Sue that Charlie's injury means paid vacation, Johnny is wearing his turnout gear and the coat has long sleeves, but in the closeup when he places the oxygen mask on Sue's face, the arms we see are bare.
Visible crew/equipment: When Evelyn and her husband pull up in front of Graymar Plaza, while they're talking in the car, in the shots facing Evelyn the reflection of crew members standing beside the car, on the driver's side, is visible on the building's glass doors.
Answer: I was rewatching a few first season episodes of Charlie's Angels (1976), and in S1xE6 "The Killing Kind," I recognized the same actor. So, to finally fully answer your question, the two baseball players in School Days are played by Rod Perry and Sean Fallon Walsh.
Super Grover ★