Despite being a huge star, the Dark Shadows actor insists he isn't a very ambitious person and doesn't choose his roles by guessing how successful they might be.
When he embarked on his acting career, Johnny - who has children Lily-Rose, 12, and 10-year-old Jack with partner Vanessa Paradis - just wanted to be able to look back on his body of work and be proud of it.
He added in an interview with the Daily Mirror newspaper: "I never knew where I was going to go. I never really thought about where any of it was going.
"I only knew that, regardless of success or failure, I always wanted to some day be able to look back and go, 'I did alright. I'm proud of what I did. I didn't sell out.'
"I've never felt particularly ambitious or driven, although I like to create stuff, whether it's a little doodle, a drawing, a small painting or a movie or a piece of music, so I suppose I'm driven by that.
"Everything I've done has felt natural."
- Bang! Showbiz