Audio problem: In the courtroom, after Roy and John defib the patient who was in full arrest, when John's on the Biophone with Rampart, he says, "We've countershocked 400 watt seconds," but as he continues to say, "Scope now shows...," John's mouth is not in sync with those words.
Audio problem: When Station 51 is dispatched to the brushfire, we hear Roy tell Johnny, "Holly Hills, isn't that where all the expensive homes are," but we see that Roy's mouth is saying something entirely different.
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 ★