The actor has cerebral palsy, but won't let that get in the way of his career.
He tells us: 'When I landed the GAP campaign I was excited. I was like, 'Yeah, let's do this!'"
"I do have a few female fans! But the thing is, you can't do anything with a fan.
"I've learnt that if you go out and have a good time, it all ends up on Twitter. But then, no one really has a private life anymore, do they?"
Due to difficulties during childbirth, RJ was born with permanent brain damage.
A few weeks later, he was adopted and at the age of three, he was diagnosed with cerebral palsy.
He was fitted with leg braces and casts throughout most of his childhood but by the time he was a teenager, he strengthened his body through exercise.
"You can't wallow," he shrugs when we ask him about his courage.
Despite his difficult start in life, RJ now lives a life that many wish for.
"I get to travel a lot, that's my favourite part,' he tells us. 'And I've always got on better with adults than kids my own age so I loved working on Breaking Bad with all older people.
"I really loved working with Bryan (Cranston, who plays Walter White). We had a blast on set."
The full interview is in this week's Reveal magazine - out now
Got an iPad or iPhone? Reveal Mag is specially designed to fit!