Bridgit Claire Mendler (born December 18, 1992) is an American actor and singer. She was born in Washington, D.C. and moved to Mill Valley, California at age eight. She acted in the movie "Alvin and the Chipmunks 2". She played Pamela in "Alice Upside Down" in 2007, and Kristen Gregory in the movie version of "The Clique". She also guest starred in Disney Channel Original Series' "JONAS" and played Juliet Van Heusen on "Wizards of Waverly Place". She plays Teddy Duncan in the Disney Channel Original Series "Good Luck Charlie" Plus she also played Olivia White on lemonade mouth."