Continuity mistake: When Brackett is in his office talking to Patsy's manager, he's paged and then told, "Treatment room 2, STAT," and he answers, "On my way," but Brackett doesn't rush to treatment room 2, he goes to room 230 which is Patsy's room, and Early even calls for a code blue in room 230.
Continuity mistake: When Brackett and Morton are with Patsy in her hospital room, there are two closeups of the Datascope 850, but there's an entirely different unit at the foot of Patsy's bed monitoring her EKG, not the Datascope 850. The same thing happens again later, when Brackett rushes in and Early tells him that Patsy was throwing more PVCs.
Continuity mistake: At the rock quarry, after Johnny tells Captain Stanley that they need the Stokes and a jack, Johnny removes his helmet, and while Jason holds Johnny's helmet, Johnny tosses the rope below, but in following shots Johnny's wearing the helmet again.
Continuity mistake: At the start, when Johnny and Roy get back to the station from their run, Roy leaves two cabinet doors wide open when he gets two coffee cups, but in the next shot as he shakes Jason's hand, those two doors are suddenly closed.
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 ★