Keanu Reeves

When he was a child, Keanu Reeves thought he saw a ghost in New York City.

Appearing on 'Jimmy Kimmel Live!' in 2014, the 'John Wick' star said: "I'm probably like six, seven years old, we'd come from Australia. Renata, [our] nanny, in the bedroom, my sister is asleep, she's sitting over there, I'm hanging out.

"There was a doorway, and all of a sudden this jacket comes waving through the doorway, this empty jacket - there's no body, there's no legs, it's just there. And then it disappears.

"I was a little kid, and I thought, 'Okay, that's interesting,' and I looked over at the nanny, and she [was making this horrified face]. And I'm like 'Oh wow, so that was real.'"