https://cdnph.upi.com/ph/st/th/5151776662947/2026/upi/73a19e08f6646a21be5f406428e27b45/v1.5/Famous-birthdays-for-April-21-Tony-Danza-Patti-LuPone.jpg" /> Actor Tony Danza turns 75 and actor Patti LuPone turns 77, among the famous birthdays for April 21.