Started watching Law & Order from the first episode onward. One of the two detectives, played by George Dzundza, left the show after the first season as he didn't enjoy the commute between NYC and LA. His wife was pregnant and he insisted on visiting her every chance he got. It got to a point where the producers apparently threatened to sue him if he held up shooting to be with his wife when she gave birth. The first episode of season 2, that character gets killed in the first scene... and we don't even see his face so they probably got a stand-in. Paul Sorvino left because he felt TV work was damaging his opera singing voice. Another weird one was the first DA, played by Michael Moriarty. According to iMDB... "Michael Moriarty resigned at the end of the fourth season after a long, vocal battle of words with Attorney General Janet Reno, who was making efforts to censor television violence. He felt that NBC was trying to silence him when two talk show appearances on the network were pulled at the last moment and his role was reduced considerably in the fourth season episode "Mayhem." Dick Wolf claims this was entirely coincidental. Moriarty claims he was forced into a situation where he had to resign. His character, EADA Ben Stone, also resigned on the show. After quitting the series, Moriarty moved to Canada, where he considered forming a political party." What are some other weird reasons or situations which transpired that made for some actors to leave?