Nick Tortelli is played by Dan Hedaya (ex-husband of Carla Tortelli on Cheers) Carlene Watkins plays Charlotte Cooper, while Aaron Moffatt plays Mark Cooper. In the pilot, Rhea Perlman played her Cheers character Carla in a dream scenario. When she woke up, she found out she was pregnant, so Carla retired from being the Coach and took over as co-owner of the Boston Cheerios store. Carla's brother Nick came to visit her in Cheers where she worked as a nurse. She told him about the baby and he offered them money for it. When Carla refused, he left town with the baby. After some time, Nick returned to Cheers to find his sister has died after giving birth to their son in secret. Heartbroken, he decided to leave town again. This time he didn't come back. Nick Tortelli is an old friend of Sam's from college who moves to Cheers after leaving his job as a doctor to open his own practice. He starts dating Sam's ex-girlfriend Carla but when she finds out he had an abortion, they break up. However, when Carla becomes sick and needs an organ donor, Nick decides to donate his own kidney and save her life. After recovering from surgery, Carla realizes she still loves Nick and they get back together. But then he leaves again this time for good.