Marty Walsh (played by Eric Palladino) is the former coach of The Rock and a three-time Olympic gold medalist. He leaves the club after Steve Tanner blackmails him with information about his affair with Ronnie Cruz. Marty begins coaching at the Denver Elite Gymnastic Club, where his top gymnast is Kelly Parker. Although the National Team trains at The Rock, Marty is named their coach. He is fired from the National Team by Ellen Beals after he tells her to stop bullying Emily Kmetko during practice.