Dish Of Salt: Stana Katic Gets A 'Doppelganger' On 'Castle'

Dish Of Salt: Stana Katic Gets A 'Doppelganger' On 'Castle'

Stana Katic tells AccessHollywood.com’s Laura Saltman that sparks will fly when Laura Prepon guest stars as Natalie Grey who will play Nikki Heat on ABC’s “Castle.” Also, how will Laura Prepon’s appearance change the relationship between Castle and Beckett?