Audio problem: When Vince and Mike pull the tabletop out from under the car, while Roy is under there with Mrs. Merkle, we hear the audio of Roy loudly saying, "I'm telling you right now, we're gonna have to brace this thing well, this thing will...," but what's oddly funny is that the dialogue is dubbed right over Roy saying, "Wait, wait, let me check her over...," which is a neat trick that he can say both lines at the same time.
Continuity mistake: When they pull the man with chest pains from the pickup truck, Dixie says treatment 3, which is opposite the receiving entrance and on the same side of the hall as the nurses' station, closest to the red line on the hallway floor, but when Dixie leaves the treatment room it's at the side of the hallway closest to the yellow line, and since there's a window on its door we know it's actually treatment 1 that he's in, not 3.
Continuity mistake: At the restaurant, when they begin to work on getting Mrs. Merkle out from under the car, Vince sets the Biophone down on the table, and there's a netted, red glass candle on the table, but in a following closeup the candle's net has vanished and it's pinkish clear glass now. Other items on the table change as well.
Continuity mistake: When Roy and Johnny go to get on the helicopter they are with only the orange bio-phone, but after The Boat brings them back to the shore you see them running to the helicopter with the patients, and they pick up their large black trauma box. They didn't have it with them when they left.
Continuity mistake: When Mr. And Mrs. Merkle visit the station the first time, Mrs. Merkle's long, pointed blouse collar jumps under and over her sweater repeatedly.
Continuity mistake: When they pull Mrs. Merkle from under the wrecked car in the restaurant, the BP cuff is not visible around her right arm, but in her closeup she has the wide BP cuff around her arm with the gauge facing up, then in the wide shot once again the BP cuff is not visible.
Continuity mistake: When Marco and Chet use the jaws to lift the car off the victim, Roy begins to get her vitals, then it cuts to Captain Stanley on the Biophone saying, "Vitals second victim, pulse is 120, respiration's 30, she's pale and clammy," but it's not until quite a few shots later that Roy actually shouts those vitals to Captain Stanley.
Character mistake: At the restaurant, when Captain Stanley's on the Biophone with Rampart, Brackett asks, "Is there any evidence of external hemorrhaging on your second victim?" and then Cap responds, "We can only see superficial cuts at this time... Pupils are equal and reactive, negative on the IV at this time," as if Brackett ordered an IV, but Brackett never said anything to Squad 51 about any IV.
Visible crew/equipment: When the dispatcher tells Copter 10 to meet Squad 51 at the five mile mark, Copter 10 lifts off, and we can see the moving shadow of the filming helicopter near the shadow of Copter 10.
Continuity mistake: The day after the awful fish dinner, when the Merkles visit the station again, Roy is holding a can of whipped cream in his right hand in the side shots, but in the shot facing him he's holding a carton of milk.
Deliberate mistake: When Roy and Johnny are on Copter 10, just after dispatch tells them that the run is cancelled, there is a shot of Copter 10 turning around which is a flipped shot - note the backwards 10 on the tail.
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 ★