The Cast of Castle Before They Were Famous! (VIDEO) Tweet May 22, 2012 by Wetpaint Entertainment Staff Related: Castle, Nathan Fillion , Stana Katic , Jon Huertas , Seamus Dever , Tamala Jones , Molly Quinn , Susan Sullivan Credit: YouTube Think you know what the stars of Castle did before they were on ABC's hit crime procedural? Check out Nathan Fillion, Stana Katic, and more before they were famous!
)
