- He has admitted that he called his ex-wife Gabrielle just to hear her voice. The two are now close friends.
- He and his wife Gabrielle Lewis married in 1965, but divorced in 1975.
- Michael has admitted he enjoys listening to singer Robbie Williams.
- He used to be a smoker and drinker, until he quit for health reasons.
- One of Michael's hobbies includes traveling.
- Michael's height is 5' 10½" (1.79 m).
- Michael and his wife, Gabrielle have two daughters.
- Michael sold eggs from a stall on Brixton Market in London as a child.
- He won a 1988 Tony for Best Actor in a Musical for Phantom of the Opera.
- His mother, Doris O'Keefe, died before he turned 21, and he was closest to his grandmother, Edith Kathleen O'Keefe who lived to be 99.
- Michael's father died in action 6 months before his birth during WWII.
- He once saved a crew man as he fell from the rafters above the stage after the curtain call of a Phantom show. Michael saw him falling, and ran from Downstage Left to Upper Right and caught him.
- He has been the president of the "Sick Children's Trust" eversince 1987.
