A.J. Cook

A.J. Cook first made a name for herself in 1999 when she was cast in Sofia Coppola’s indie hit “The Virgin Suicides.” She went on to star in the TV series “Higher Ground,” opposite Hayden Christensen, and landed roles in films including “Final Destination 2,” “I’m Reed Fish,” “Ripper,” “Wishmaster 3,” “Out Cold,” “Misconceptions” and “Night Skies.” Cook’s television credits include the Lifetime Original Movies “Vanished” and “The House Next Door,” as well as roles in “Dead Like Me” and “Bloodsuckers.” In 2003, she won the role of Lindsay Walker on “Tru Calling,” starring Eliza Dushku, and she can been seen as Jennifer “JJ” Jareau in “Criminal Minds,” opposite Shemar Moore.

Libba refuses to give up hope when her younger sister, Ashley, vanishes. Against all odds, she wages a campaign to find Ashley over the course of several years. During that journey, she also makes it her mission to help other families searching for missing adults.