Corey Feldman

According to his autobiography, he was cast as Elliott's best friend in the film, E.T. el extraterrestre (1982), but after several rewrites, his character was reduced to almost nothing. Steven Spielberg suggested he not take one of the minor roles, and wait till he could offer him a larger part in one of his other movies. These movies turned out to be Gremlins (1984), and later Los goonies (1985).
Before filming began on Los muchachos perdidos (1987), though, Haim reached out, contacting Feldman privately and asking to get better acquainted, and Feldman discovered that Haim enjoyed many of the same things he did. The two became life-long friends, until Haim's death in 2010.
He and Corey Haim were the two highest paid teen stars and were essentially the kings of the teen box office back in the mid to late 80s.
He chose not to attend his best friend Corey Haim's funeral out of respect for Haim's family, because they wanted to keep the funeral as low-key as possible. He instead issued an open letter on the Internet which he wrote to his deceased friend.
He and ex-wife Vanessa Marcil, whom he married in Las Vegas, never moved in together.

I'm more than an actor. I'm an icon, an industry. [edited quote from interview segment while filming 'The Surreal Life' - full quote: "Okay, I'm more than an actor, I'm a musician, and a producer, and a dancer. And it's wonderful if people think that I'm an icon, an industry, but really, I'm just appreciative of the fact that I' still working"]
It was a great experience for a kid, because it was a bunch of kids playing on pirate ships and water slides, so looking back on it, it was the fondest experience of my childhood - about working on Los goonies (1985).
"It did not feel like something that was going to take over my life and destroy it. It felt like a subtle flower instead of a manipulative demon. That's the mystery of heroin." (USA Today)
I was famous before I knew my own name.
I didn't enjoy filming "A New Beginning" at all. It was about 40 degrees out and they 'rained' freezing cold water on me. Plus, they made me keep my eyes open during the downpour. Danny Steinmann, who was one tough director, kept yelling at me, saying I couldn't act! [Recalling the filming of his cameo appearance in Martes 13 parte V: Un nuevo comienzo (1985)].