The Cast: Actors & Actresses with Major and Supporting Roles:

Rachel McAdams as Paige : You've seen her as the star in The Notebook, the protagonist in Red Eye and the famous "Regina" in Mean Girls. Here, Rachel McAdams portrays Paige, the young woman who struggles to regain her identity after a car crash leaves her with limited memory of her life.

Channing Tatum as Leo :
He got his first leading role in the 2006 film Step Up and more recently appeared in Dear John. Now, Channing returns as Paige's perservering husband, Leo. Leo will stop at nothing to rekindle the love of his wife who no longer remembers him.

Scott Speedman as Ex:
Best known for his roles in the tv series Felicity and supernatural film, Underworld, Scott Speedman stars in The Vow as Paige's former flame. When Paige can no longer recall who her husband is, Scott's character figures he's got another shot - if he can get past Leo.

Jessica Mcnamee as Sister:
Australian actress known for her work in the award-winning television series Packed to the Rafters , Jessica Mcnamee stars as Paige's younger sister.

Sam Neil as Dad:
Most recognized for his role as Dr.Alan Grant in Jurassic Park and Jurassic Park 3, Sam Neill is cast as Paige's father.

Jessica Lange as Mom:
Famous for playing Patsy Cline in Sweet Dreams and Blanche Dubois in A Streetcar Named Desire, the winner of 2 Academy Awards and 4 Golden Globes.