The 56-year-old actress - who was married to 'Mission Impossible' star Tom from 1987 to 1990 - has expressed her sincere feelings of sympathy towards her ex-husband and his third wife Katie over their recent split.
Mimi told US Weekly: ''I wish them both the best. There's not much else to say.
''I really do, though. I wish them the best.''
Mimi explained: ''I think marriage is hard work no matter what. I think it's about first and foremost being great friends.''
Hollywood couple Katie and Tom - who have six-year-old Suri together - split in June after five years together when the former 'Dawson's Creek' star filed for divorce.
Katie has since been granted sole custody of their daughter.
The 33-year-old beauty reportedly sought comfort in Tom's second wife Nicole Kidman - who has two adopted children, Isabella, 19, and Connor, 17, with Tom - and has been friends with Katie since 2006.
A source said at the time: ''She has been a private friend not many people know about. She told Katie her life is great now and she has no regrets.''
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