Above and Beyond... Nearly - S5-E20
Other mistake: After Dixie gets the call from the dental clinic about the possible MI, she and Brackett take the elevator located at the nurses' station and head up to the dental clinic on the third floor. Problem is that the ER is only a 2-storey building, so that is quite impossible.
Above and Beyond... Nearly - S5-E20
Visible crew/equipment: In the dental clinic, when the possible MI is being examined, two actors' black tape marks become visible under the patient's chair, one below the footrest and another below the headrest.
Above and Beyond... Nearly - S5-E20
Revealing mistake: Dixie and Brackett rush onto the elevator with a crash cart to go up to the third floor, for a possible MI in the dental clinic. The camera's POV is from the elevator, and in one continuous shot, without cutting away, we see the ER hallway through the open doors, then the doors close and in a few moments the doors open on the third floor. Even though the set has changed a bit, we can tell it's still the ER hallway by things such as the same scuff marks on the floor, and we can also catch a glimpse of the paramedic status board on the wall, where the base station room is located.
Above and Beyond... Nearly - S5-E20
Visible crew/equipment: When Johnny and Roy get back to the station, and Captain Stanley tells them to come into the office where Chief Houts is waiting, the reflection of numerous set lighting can be seen on the squad's chrome spotlight.
Above and Beyond... Nearly - S5-E20
Continuity mistake: After Station 51 is dispatched to 'man stranded on a cliff', when Roy and John free climb up the cliff, they're not wearing their uniform shoes, they're wearing hiking-type shoes with ridges on the soles.
Above and Beyond... Nearly - S5-E20
Revealing mistake: When Roy and Johnny are on the cliff loading the unconscious victim onto the stokes, as they try to lift each of the victim's legs, we can see the unconscious man also lifting his own leg to assist the actors.
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 ★