Nikolas Mikhail Stavrosovich Cassadine is a fictional character from the original ABC Daytime soap opera, General Hospital, originally portrayed by Tyler Christopher in 1996.
After Faison escapes from prison with the help of Obrecht, and Anna learns from Nikolas Cassadine that Obrecht has been to Cassadine Island, Robert and Anna decide to pursue them to Cassadine Island, hoping to find Robin still alive.