If you didn't know who Gary Busey was before he stepped into the Celebrity Big Brother house, you will now, and we have taken a look at the actor's turbulent rise to fame and how he's changed through the years.

The Point Break actor, 70, joined the likes of Lauren Goodger, David McIntosh, White Dee and more on the new series of Celebrity Big Brother and made possibly the most awkward exit we've ever seen on the show.

We know, that's a big statement, but try and deny it.

Walking out with a huge grin on his face, Gary immediately began flirting his heart out with presenter Emma Willis (while the rest of the world cringed), before appearing not to hear a word she said to him.

When asked what kind of a housemate he'd be he laid on the sleaze telling Emma: "Come and see me later."

But it hasn't always been cringe central, and the actor - best known for his roles in Point Break and The Buddy Holly Story - has had a rocky life.

Growing up in Oklahoma he attended Kansas State University on a football scholarship but his dreams of pursuing a career in professional sports were shattered after injuring his knee. He then moved to Hollywood to pursue a music career but acting beckoned.

After securing several small roles in both film and television during the 1970s he made his film debut in Angels Hard As They Come in 1971. Following this he starred as the lead in The Buddy Holly Story.

But all that was thrown into question when the eccentric actor was involved in a serious motorcycle accident in 1989 after he rode without a helmet.

(Image: Rex)

The accident split his skull open and he was taken to hospital for immediate surgery.

He now claims that his brain got altered - it was a wake-up call to get his life in order and to appreciate it. He also recovered two and a half months earlier than predicted and says his faith was the reason.

“At one time they had me under 12 layers of drugs and strapped down to a metal table, naked, in the mental health alert ward - cause they were going to ‘Cuckoo Nest’ me,” Busey said in a video previously.

“And I felt a white cloak cover around me, and I called that cloak faith. And that’s what got me out of the hospital two and a half months early.”

The shocking accident lead to stricter helmet laws in California.

(Image: Ramey Photo)

Despite the near miss, Gary continued to remain firmly rooted in the limelight, with more sinister roles in the action thrillers Lethal Weapon, Predator 2 and of course Point Break with Keanu Reeves and Patrick Swayze.

However, his rocky life soon took another turn for the worse, and Gary turned to cocaine, eventually overdosing on it on May 3, 1995.

After the scare, the troubled actor vowed he wouldn't touch it again and he's reportedly managed it ever since.

“I’d never done it before and I tried it, and bam, whoa. I was taken by the addiction,” he told Oprah Winfrey.

At his worst, Gary resorted to snorting the drug straight off his dog - yes, REALLY.

After accidentally dropping a bag of cocaine on his pet, Gary swooped in without thinking of the health risks, keen to get his fix.

He told US television show Access Hollywood: "I went in like a cropduster with my nose flying first and snorted the cocaine off the dog."

(Image: PA)

But despite cleaning up his act, Gary was in for more bad luck when he had to have a golfball-sized cancerous tumour removed from his sinus cavity, and radiotherapy to recover.

His career never picked up after that, and Gary was later arrested for spousal battery of his second wife Tiana in 1999.

He has since made every effort to get back on track, and appeared on Celebrity Rehab in 2008 - where he incidentally briefly dated housemate Frenchy.

Gary now has three children - son Jake with his first wife Judy, daughter Alectra with Tracy Hutchinson and son Luke with his wife Steffanie Sampson.

He also says he has black belts in all of the following martial arts: budo-jujitsu, capoeira, hapkido, and kendo, which may yet come in handy in the Celebrity Big Brother house.