20 hottest TV stars under 30

<b>Boob Tube's Prettiest People</b> With young stars playing everything from geeks to broke girls, TV has never been hotter. Click through to check out some of the hottest young stars on television. (ABC/The CW/CBS)

<b>Kaley Cuoco</b> Kaley plays Penny on "The Big Bang Theory" on CBS. (CBS)

<b>Clare Bowen </b> Clare plays Scarlett on ABC's "Nashville." (ABC)

<b>Emily VanCamp </b> Emily plays a character by the same name on ABC's "Revenge." (ABC)

<b>Angus T. Jones </b> Angus plays Jake on "Two and a Half Men." (CBS)

<b>Hayden Panettiere </b> Hayden plays Juliette on ABC's "Nashville." (ABC)

<b>Ed Westwick </b> Ed plays Chuck Bass on The CW's "Gossip Girl." (The CW) (© 2012 THE CW Network, LLC. All Rights Reserved.)

<b>Heather Morris</b> Heather plays Brittany on "Glee." (FOX)

<b>Sarah Ramos </b> Sarah plays Haddie Braverman on NBC's "Parenthood." (NBC)  

<b>Nina Dobrev </b> Nina plays Elena Gilbert on "The Vampire Diaries." (The CW) (&copy;2012 The CW Network. All Rights Reserved.)

<b>Dreama Walker</b> Dreama plays June on "Don't Trust the B---- in Apt. 23." (ABC)

<b>Sarah Hyland </b> Sarah plays Haley on "Modern Family." (ABC)

<b>Morgan Saylor </b> Morgan plays Dana Brody on Showtime's "Homeland." (Showtime)

<b>Kat Graham </b> Kat plays Bonnie on "The Vampire Diaries." (The CW) (&copy;2012 The CW Network. All Rights Reserved.)

<b>Beth Behrs </b> Beth plays Caroline Channing on CBS' "2 Broke Girls." (CBS)

<b>Lea Michele </b> Lea plays Rachel Berry on "Glee." (FOX)

<b>Jane Levy </b> Jane plays Tessa Altman on ABC's "Suburgatory." (ABC)

<b>Sam Palladio </b> Sam plays Gunnar Scott on ABC's "Nashville." (ABC)

<b>Blake Lively</b> Blake plays Serena van der Woodsen on "Gossip Girl." (The CW) (© 2012 THE CW Network, LLC. All Rights Reserved.)

<b>Lena Dunham </b> Lena plays Hannah Horvath on HBO's "Girls." (HBO)

<b>Kat Dennings </b> Kat plays Max Black on "2 Broke Girls." (CBS)