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Molly C. Quinn on co-star Nathan Fillion

Tamala Jones on the 'loving' 'Castle' cast

Andrew Marlowe talks 'Castle' chemistry

Susan Sullivan knew 'Castle' would last

Penny Johnson talks 100th episode of 'Castle'

Seamus Dever on 'Castle' success

Stana Katic on 'Castle' and its 100th episode

Jon Huertas 'humbled' to be on 'Castle'

Nathan Fillion dishes on 'Castle' OTRC

'Castle' celebrates 100 episodes - Watch the cake-cutting ceremony! (HD)

'Castle' celebrates 100 episodes - Watch the cake-cutting ceremony!

Stana Katic rides a bike with Tony Cabrera from abc's OTRC

Stana Katic talks Alternative Travel Project with Tony Cabrera

Stana Katic - ET - Chatelaine

'Extra' Raw - Stana Katic At The Grove

Nathan Fillion of 'Castle' Dishes on 4th Season Video - ABC News

The Insider - How Well Do Stana Katic and Nathan Fillion Know Each Other

Castle Sneak Peek Heartbreak Hotel 4x08

Stana Katic Undy Award 2011

Castle Star Nathan Fillion at Comic Con 2011 Videos G4tv com