The Alien 3 star is expecting a baby with his fiancee, model-turned-artist Eleanor Boorman.
Boorman tells Britain's Daily Mail, "We're expecting a baby. Fingers crossed everything will be fine. We're both thrilled."
The new arrival is due in March (11) and will be the first for 39-year-old Boorman, while Dance has two adult children from his marriage to Joanna Haythorn.
The expectant couple began dating in 2008 and announced their engagement last year (Sep10).