 Some of the actors to guest star in the shorts include Sam Rockwell, Paul Rudd, Elizabeth Banks, Julie Bowen and Bradley Cooper, as well as several members of Stella's alma mater "The State", such as Joe Lo Truglio.On December 15, 2008, Stella premiered "Birthday", their first new short since 2004, on My Damn Channel, the website on which cast member David Wain had achieved much success with his show Wainy Days.Both Michael Ian Black, and Michael Showalter appeared in several episodes of Wainy Days.