Inspirational 31+ Rebecca Ferguson Mission Impossible Tom Cruise. Tom cruise and rebecca ferguson on the red carpet for the premiere of mission impossible fallout in. Let me start with the most important thing first: Rebecca ferguson (born october 19, 1983) portrays mi6 agent ilsa faust, who is embedded in the group syndicate in mission: The difference, for the movies and for tom cruise's reputation 13 years after he jumped on.