Allison Mack (born July 29, 1982) is a German-American film and television actress.
She was born in Preetz, Germany, but moved to the United States when she was two.
She then began studying at The Young Actors Space in Los Angeles when she was seven. She currently stars as Chloe Sullivan on the WB series Smallville. She and co-star Kristin Kreuk have become close friends.
Mack began acting at the age of four in commercials for "German Chocolate". She then went into modeling for a short period because her mother thought she "looked cute in clothes." Her first major TV role came in an episode of the WB series 7th Heaven, where she gained a lot of attention playing a teenager who cut herself.
In 2000, she starred in two short-lived series: Hiller and Diller and Opposite Sex. She also starred along-side Sam Jones III in an R. L. Stine miniseries The Nightmare Room. Her filmography includes Eric Stoltz's directorial debut My Horrible Year!, where she plays a girl having great difficulties in her life as she turns sixteen, and Camp Nowhere.