Mike is the ex-husband of Rosie Miller, and father of Mickey Miller and Dawn Swann. Mike deserted his family when Dawn was six and Mickey was three. Dawn tracked her father down and went to live with him in France years later. She invites Mickey to visit, not telling him about Mike. Mickey takes Gus Smith, Juley Smith, Garry Hobbs and Minty Peterson with him. Mike exposes Juley as a conman, as he is one himself. He cons Minty out of his life savings and then flees. He feels guilty and returns the money to Mickey, and sends Dawn back to Walford with Mickey, then drives away on the lookout for his next scam.