Happy 31st Birthday, Kaley Cuoco! Relive 7 of Her Best Throwback Roles That You May Have Forgotten About

Let's get our necessary dose of nostalgia, yes?

Quick! Name a character Kaley Cuoco has played on TV!

We're willing to bet that the majority of you said Penny from Big Bang Theory, and that's a perfectly fine answer, because that is without a doubt her biggest role to-date.

But before the blond beauty took on the mysterious and fascinating world of science while earning a whopping $1 million per episode on the small screen, she was appearing on a number of other TV and film projects that you probably forgot you loved.

"I don't think success comes over night. I've been doing this for over 20 years and it's been a long road," she recently told Women's Health. "If you really want it you've got to go for it, but that's for anything…it takes a lot of work and a lot of drive and a lot of patience."

So, in honor of Cuoco's 31st birthday, we decided to take a trip down memory lane and recall some of our favorite roles that she took on way back when.

1. My So-Called Life: We're taking it back to the '90s! You probably forgot that Cuoco appeared on the series as a young Angela Chase, which was played by Claire Danes.

2. Picture Perfect: The year is 1997. The stars are Jennifer Aniston and Kevin Bacon. Cuoco was among some of the greats in the film as "little girl."

3. Alley Cats Strike: Let's take it back to 2000, when Disney Channel Original Movies ran our lives. Cuoco put on her red league shirt and showed us how to dominate the pins in this bowling flick.

4. 7th Heaven: In 2001, the TV star appeared in one of the famous family series' episodes, playing Lynn, an unavailable girl Simon (David Gallagher) is interested in.

5. Charmed: From 2005 to 2006, Kaley had a recurring role on the WB series as Billie Jenkins, a newbie witch who needed some training and help from spell connoisseurs Piper Halliwell (Holly Marie Combs), Phoebe Halliwell (Alyssa Milano), and Paige Matthews (Rose McGowan).

6. To Be Fat Like Me: In 2007, Cuoco starred in this made-for-TV movie as Alyson Schmidt, a slim teen who endured harassment while posing as a 250-pound high school student for a documentary film contest.

7. Drew Peterson: Untouchable: Yep, she even made it to a Lifetime movie. Cuoco co-starred in this 2012 drama based on a true story alongside Rob Lowe as Peterson's fourth wife who went missing.