O'Neal said his final goodbyes to the Charlie's Angels star at her Los Angeles memorial service in June (09), after the actress lost her long battle with anal cancer.
The actor admits he took comfort in the arms of a "beautiful blonde woman" who came up and embraced him after the service - and he didn't realise it was his own daughter Tatum.
He tells Vanity Fair magazine, "(I'm) a hopeless father. I had just put the casket in the hearse and I was watching it drive away when a beautiful blonde woman comes up and embraces me. I said to her, 'You have a drink on you? You have a car?' She said, 'Daddy, it's me - Tatum!' I was just trying to be funny with a strange Swedish woman, and it's my daughter. It's so sick.
Tatum adds, "That's our relationship in a nutshell. You make of it what you will. It had been a few years since we'd seen each other, and he was always a ladies' man, a bon vivant.".