Nathan Fillion at the Big Bang Theory's 200th Episode Celebration YouTube

Nathan Fillion Big Bang Theory. Los Angeles, CA, USA. 20th Feb, 2016. Nathan Fillion at arrivals for THE BIG BANG THEORY 200th The Castle and Firefly actor will feature in the February 19 episode of the show as himself The Big Bang Theory has been known to nab some big guest stars in the past—especially those with ties to the science and science fiction communities

Nathan Fillion is set to cameo as himself in an upcoming episode of The Big Bang Theory, EW has learned exclusively. Nathan Fillion's cameo on 'The Big Bang Theory' is one that the fans and cast completely ate up behind the scenes.

Nathan Fillion to do a cameo in The Big Bang Theory Hindustan Times

Nathan Fillion's cameo on 'The Big Bang Theory' is one that the fans and cast completely ate up behind the scenes. The Castle and Firefly actor will feature in the February 19 episode of the show as himself Nathan Fillion to guest star on The Big Bang Theory Posted February 3, 2015 Nathan Fillion will make a cameo appearance in an upcoming episode of The Big Bang Theory, according to an EW.com exclusive report

Actor Nathan Fillion attends "The Big Bang Theory" 200th episode... News Photo Getty Images. Nathan Fillion to guest star on The Big Bang Theory Posted February 3, 2015 Nathan Fillion will make a cameo appearance in an upcoming episode of The Big Bang Theory, according to an EW.com exclusive report Nathan Fillion's cameo on 'The Big Bang Theory' is one that the fans and cast completely ate up behind the scenes.

Nathan Fillion («Castle») en cameo dans «The Big Bang Theory». Nathan Fillion is set to cameo as himself in an upcoming episode of The Big Bang Theory, EW has learned exclusively. Guest Star: Nathan Fillion The Comic Book Store Regeneration Season 8, Episode 15 - Aired February 19, 2015 As they prepare for the reopening of Stuart's comic book store, the gang is at each other's throats