The 47-year-old actor - who has a four-year-old daughter, Suri, with the brunette actress - realised Katie was his dream woman almost instantly and was convinced she would be his wife.
He told Britain's OK! magazine: "I knew that I wanted to marry her after the first day I met her.
"What's even more interesting is that Katie confessed that when she was a teenager she dreamt of marrying me. Doesn't it seem incredible?"
Katie is not the only person the father-of-three immediately knew he had a connection with, he also felt close to England soccer superstar David Beckham from the first time they met.
He explained: "David and I became friends from the very start. I really admire him as a person, father, husband, and athlete. He's absolutely fantastic.
"He's got a great competitive spirit and he's a tireless worker with a clear mind and a solid body."
Tom and Katie, 31, are now reportedly trying for another baby to give Suri a sibling, as the former 'Dawson's Creek' star feels now is the right time in her life.
A friend of the couple revealed: "She no longer feels like she's just Mrs. Cruise. She's her own person again."