Nathan Fillion will appear on the Late Late Show with Craig Ferguson on Wednesday May 6th.  The show will be taped in front of a live audience in LA at 3:30pm and tickets to the event are available here

Stana Katic (also from Castle) appeared on the show on Monday 4th.

The Late Late Show with Craig Ferguson airs weeknights at 12:35am ET/PT (Nathan’s show will technically be aired Thursday morning)

For more information visit http://www.cbs.com/late_late_show