Other guest hosts who have agreed to appear include Howie Mandel, Neil Patrick Harris, Jeff Probst, Pat Sajak, Martin Short and Donald Trump.

Celebrities featured on the show include Taylor Swift, Neil Patrick Harris, James Franco, Sarah Jessica Parker, Susan Sarandon, Samantha Stosur, and Chris Martin and Guy Berryman from the British band, Coldplay.

Television honors included "Glee" star Lea Michele and Neil Patrick Harris for "How I Met Your Mother," which also won favorite TV comedy show.

Past performers include Conan O'Brien, The State, Gene Wilder, Garry Shandling, The Kids in the Hall, Mr. Show, Paul Reubens, Upright Citizens Brigade, Neil Patrick Harris and many more.

Live-action roles include Hank Azaria, Neil Patrick Harris, Jayma Mays and Sofía Vergara, while the voice-over roles include Jonathan Winters, Katy Perry, Fred Armisen, Alan Cumming, Anton Yelchin and George Lopez.

All but one of the play's five actors, who include Ron Rifkin (a Baitz mainstay), Neil Patrick Harris and Patricia Wettig, play dual roles.

Some of the celebrities who have taken part in the Processional over the years include John Stamos, Marlee Matlin, Corbin Bleu, Haley Joel Osment, Susan Lucci, Jim Caviezel, and most recently, Neil Patrick Harris.

Directed by Joe Mantello, with a cast that includes Neil Patrick Harris and the invaluable Denis O'Hare, the show offers an alternative vision of American dreamers - or, as one song title puts it, "Another National Anthem" - in this time of furious flag-waving.

Artists who appeared on the podcast include Brian d'Arcy James, Liz Callaway, Hunter Foster, Emily Skinner, Ann Harada and Neil Patrick Harris.

The list of names includes Edie Falco, Drew Carey, Christian Finnegan, Heather Graham, Helio Castroneves, Miranda Kerr, Hannah Teter and Neil Patrick Harris.