Valentin Mikkosovich Cassadine is a fictional character from the ABC soap, General Hospital. He is the previously unknown and unseen son of the late Prince Mikkos Cassadine and an unknown woman. He is the father of Charlotte Cassadine with Lulu Spencer-Falconeri, who was born via surrogate. He is deeply feared in his family, considered to be the most dangerous Cassadine, even more so than Helena herself. Under his alias Ivan Theodore he was known to be the best and brightest trainee to have ever attended the WSB Training Academy, a fact acknowledged by Anna Devane herself.