Alyson Michalka often credited as Aly, is an American actress, singer-songwriter, guitarist, and pianist. She is perhaps best known for her roles as Keely Teslow in the Disney Channel original series Phil of the Future, Charlotte Barnes in the feature film Bandslam, Taylor Callum in the Disney Channel Original Movie Cow Belles.

Alyson is also known as one-half of the musical duo 78violet with her sister Amanda Michalka. She stars as Marti Perkins in the television series Hellcats. She was born in Torrance, California and grew up in Seattle, Washington and Southern California with her sister Amanda. Her mother, Carrie, is a musician and performed with JC Band, a Christian band.

Alyson Michalka has been playing the piano since she was five and started playing the guitar at the age of thirteen. She started acting when she was five years old, mostly in church play productions. She was raised as a Christian and continues to practice the faith.