The Quick 10: 10 Famous Only Children

As an only child, I'm thrilled to see the latest study that proves having no brothers or sisters doesn't automatically make us selfish, spoiled or introverted. Although I'm probably all of those things. Check out these 10 other people who grew up sans siblings. Just know that I'm the most important one. (I'm kidding.)

1. Lance Armstrong.

Armstrong has mentioned his struggle with cancer was particularly difficult on his mother because of his only child status.

2. Frank Sinatra. Definitely not an introvert. His parents hoped their only child would pursue a career in civil engineering.

3. Natalie Portman. "I always want to be with someone who has siblings. I will never date another only child," she once said, and I have to agree with her, personality traits aside. My kid has no aunts or uncles on my side "“ it would be pretty sad if she didn't have any on her dad's side either.

4. Robin Williams. Although he's rather manic today, Williams has said he was incredibly shy as a child and didn't overcome that until he joined his high school drama department. He does have two half-siblings who are much older than him - his parents met and married when those children were already grown, so Robin was raised as if he were an only child.

5. Tiger Woods. I guess "selfish" probably applies to him, huh?

6. Laura Bush. The large Bush family, Laura has mentioned, welcomed her into their family from the start and made her feel as though she had grown up with them. Speaking of quiet types"¦

7. Teller of Penn and Teller. Quiet indeed.

8. Franklin Delano Roosevelt.

FDR, so far, is the only president of the United States to be raised as an only child. He had a step-sibling but not until he was an adult. FDR's mother, Sara, was an infamously involved "“ some might say smothering "“ mama.

9. Daniel Radcliffe.

Like his film counterpart, Daniel is his parents' one-and-only. And it's not just Harry who doesn't have siblings - many of the characters in the series are only children: Hermione, Neville, Luna, Dudley, Draco.

10. Robert De Niro is another actor who dealt with his shyness by going into acting. It wasn't until he starred as the Cowardly Lion in a school production of The Wizard of Oz that he found his "voice."

What do you guys think? Are you an only child who fits that old stereotype like it was written about you? Or do you think the supposed personality traits that go with birth order are ridiculous?