Other mistake: When the ambulance arrives and they're loading Johnny onto the ambulance, Captain Stanley says, "Okay, Chet, take the squad..." but the subtitles get both characters wrong, it reads that a "Paramedic" says, "Okay, Chip, take the squad..." There is no Chip. Subtitles from Universal Studios 2010 DVD.
Deliberate mistake: After Johnny's and Captain Stone's efforts, when the construction site's cardiac arrest is wheeled into Rampart, the problem is twofold; First, we hear Roy's voice saying, "Full arrest, number four," even though Roy is not actually on this run (that line is from S4xE21 "Back-Up", when they wheel the cardiac arrest into treatment 1, after defibbing him atop Engine 51). And second, the attendant pulling the stretcher changes, and the EKG monitor lying on the patient is the old blue Datascope 850 from earlier seasons (this shot is from S4xE7 "Daisy's Pick", the hypothermic victim - note his wrapped foot!), whereas at the construction site and when he's wheeled into the treatment room, the EKG monitor is the newer white Datascope M/D2.
Continuity mistake: At the nurses' station, after Roy tells Brice that Brightweiser will be okay the two of them walk to receiving carrying their gear, with Roy holding the Biophone and defibrillator, but as they head through the doors both the Biophone and defibrillator have each turned around in Roy's hands, and now face the opposite way.
Continuity mistake: After Roy shows Brice the drug box, Roy places it back into the squad's side bay in the closeup, but in the wide shot Roy's still holding the drug box while Brice acts like his annoying self.
Other mistake: When the cardiac arrest is first brought into the ER we hear "Let's get him intubated," but the weird subtitles read, "Let's get him elevated." Subtitles from Universal Studios 2010 DVD.
Other mistake: At the construction site, after Johnny administers the epinephrine to the cardiac arrest, 39's paramedic resumes CPR, and when they're lifting the patient onto the stretcher Johnny says, "Stop CPR," but the subtitles read, "Start CPR," which makes no sense since they've been doing CPR all along. Subtitles from Universal Studios 2010 DVD.
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
Revealing mistake: After Roy and Johnny get to the hospital with the 18 month old baby who stopped breathing, when Johnny is rushing up the hallway giving mouth-to-mouth to the baby, we can see that the happy little baby is wide awake and even smiling.
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.
The Tycoons - S5-E23
Other mistake: When Johnny and Roy are in the kitchen talking about pooling money for Davey's Dogs, there are three small containers of milk on the table which have tape covering the brand names.
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.
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 ★