“How lovely, many congratulations to all of you! What a beautiful picture,” Katie Marsden added with a heart emoji.
Helen Tuck penned: “Congratulations all! So pleased for you and announcing this on St David’s day too! Excellent day!”
Before he started dating Anna in 2019, Michael was in a relationship with English actress Kate Beckinsale from 1995 until 2003, and the pair welcomed their 23-year-old daughter named Lily in 1999.
Between these two relationships, Michael has also dated English ballet dancer Lorraine Stewart, Canadian actress Rachel McAdams and American comedian Sarah Silverman from 2014 up until 2018.