She has made several television appearances including Cold Case, Ned's Declassified School Survival Guide, and Disney Channel's Hannah Montana.

On August 24, 2007, during the Miss Teen USA 2007 pageant, Teegarden posed the question ("Recent polls have shown a fifth of Americans can't locate the U.S. on a world map.

[4] In 2009, Teegarden guest-starred in three episodes of The CW's 90210 as Rhonda, a West Beverly student who crosses paths with Ethan Ward.

In 2010, it was reported she had been cast to star as Amanda Miles in the Warner Premiere and Dolphin Entertainment action web series, Aim High with Jackson Rathbone.

[9] In 2011, Teegarden co-starred in Wes Craven's Scream 4 as horror loving high schooler, Jenny Randall featuring in the opening scene.

[10] Also in 2011, Teegarden starred opposite Thomas McDonell in the Disney film Prom as Nova Prescott, an overachieving high school senior, bound for Georgetown University after graduation, trying to put together the prom while dealing with love, heartbreak, and pressure from her parents, and falling in love with the school bad boy Jesse Richter (McDonnell).