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20 Famous Actors You Didn't Know Were On "Smallville"

Tom Welling kept good company over 10 seasons of Smallville. I bet you didn't know that some of your favorite actors started as meteor freaks.

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4. Brian Austin Green

Jack Rowand / © Warner Brothers Television / Courtesy Everett Collection

B.A.G. played Metallo. He was a Daily Planet reporter that was experimented on by Zod and now has a kryptonite heart. Yikes.

9. Ian Somerhalder

The CW / Via

Somerhalder played Adam Knight (an obvious ode to Batman) on several episodes. He was dating Lana until she started uncovering his secrets such as him spying on Clark... him working with the Luthors... oh, and him being DEAD.

You probably know her from...

New Line Cinema

WEDDING CRASHERS. (Yes, I chose this as opposed to the TV show she starred in 1993-1998, Dr. Quinn, Medicine Woman. She was also in an episode of How I Met Your Mother.)

12. Miranda Cosgrove

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No, you are not crazy. That is NOT Miranda Cosgrove. However, she did provide the voice! She was the voice Lana Lang, age 5, in the pilot.

14. Adam Brody

The CW

Brody played Justin Gaines, a cartoonist who was hit by a car and lost the ability of his hand. The meteor shower gave him the power of telekinesis and he used it to woo Chloe and murder Principal Kwan.

You probably know her from...

View this video on YouTube

THE RADIO. Milian is a singer who became famous in 2001. She is now a contestant on Dancing With The Stars and was the Social Media Correspondent for the Voice.

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