General Hospital's Biggest Paternity Crises

Spencer Cassadine: Jax and his wife, Courtney, were having a lot of problems in their marriage, but when she got pregnant, Jax hoped that meant they could make it work. Unfortunately for him, by then, Courtney had fallen in love with Nikolas Cassadine ... and the baby was his! This didn't come to light until Courtney died tragically, and after a bitter custody fight, Nikolas was able to raise his son, Spencer.