Jewel Staite is a Canadian actress, who portrayed Kaylee Frye in Firefly and Serenity, and Dr. Jennifer Keller on Stargate Atlantis.

Staite was born in White Rock, British Columbia. The youngest of seven children, she modeled as a child and has acted since age six. She attended the Vancouver Film School and worked at the Vancouver Youth Theatre. She married Matt Anderson on April 25, 2003. She has worked with the Dyslexia Foundation and several AIDS charities.

One of her most famous roles is as Kaylee Frye in the short-lived science fiction/western television series Firefly and its subsequent 2005 film, Serenity. She also wrote a chapter in the book Finding Serenity, called "Kaylee Speaks: Jewel Staite On Firefly". She played Heidi Gotts, the antagonist in the TV series Wonderfalls, which, like Firefly, was cancelled by FOX.

She currently plays the role of head of medicine Dr. Jennifer Keller in the Stargate SG-1 spinoff Stargate Atlantis, making her the third actor from the Firefly series to move on to appear in a Stargate series (the first being Adam Baldwin and the second being Morena Baccarin), and the second to take a recurring role. She replaced Paul McGillion (Dr. Carson Beckett). In the fifth season, her character was changed from recurring status to part of the main cast. Before taking on the role as Dr. Keller she previously played the Wraith child Ellia in the Stargate Atlantis episode "Instinct".