The Hollywood actor beat runner-up Audley Harrison in the final of the Channel 5 reality show, and his exit was almost as bizarre as his entrance.
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When Big Brother announced to Gary that he'd won, asking him to leave the house, Gary wasn't sure if they meant now or later.
Eventually he realised he needed to get out, and exited to cheers and screams from the crowd – loving it so much that Emma Willis had to fetch him from the top of the stairs.
In his exit interview with Emma, he said: "I can't tell you how this feeling of enlightenment of love from Britain and my housemates that I've live with and everyone here, every one of you all… I know why the word Great is in front of Britain."
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Dee Kelly came in fifth place, and confessed to Emma that she's keen to get into politics – after seeing her children, of course.
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She said: "I've got to see the kids, I'm a mum first and foremost, and then I'm going to give David Cameron a run for his money."
And, after their shock hook-up during their last night in the house, could things be about to get serious for former B*Witched singer Edele Lynch and George Gilbey.
She coyly told Emma that she'll see how things go with him, adding: "It was enjoyable… It was a good kiss."