Creator	Role	# of Episodes
Mark Hamill Mark Hamill is an actor, voice actor, and writer.	Guest	1
Chris Sullivan Chris Sullivan is an actor and musician. He currently stars as Toby on the NBC d... more	Guest	1
Lou Ferrigno Jr. Louis Jude Ferrigno Jr. (born November 10, 1984) is an American actor. He is bes... more	Guest	1
Christophe Beck Jean-Christophe Beck is a Canadian television and film score composer and conduc... more	Guest	1
Blake Ritson Blake Adam Ritson is an actor and director. He is known for his portrayal of vil... more	Guest	3
Michael Paré Michael Kevin Paré is an actor.	Guest	1
Dana Delany Dana Welles Delany is an actor, best known for her roles on the television shows... more	Guest	1
Danielle Panabaker Danielle Nicole Panabaker is an actor. She is best known for her roles on series... more	Guest	1
Morena Baccarin Morena Baccarin is an actress. She is known for portraying Inara Serra in the se... more	Guest	1
Mark Evanier Mark Stephen Evanier is an American comic book & television writer, comics histo... more	Guest	1
William Shatner William Shatner is an actor, author, producer, director, and singer.... more	Guest	1
James Marsters James Wesley Marsters is an American actor, musician, and voice actor.... more	Guest	1
Kathy Najimy Kathy Najimy is an actor, comedian, writer, and activist. She is best known for ... more	Guest	1
Adi Shankar Adi Shankar is a film producer, writer, YouTuber, and actor.	Guest	1
Claudia Wells Claudia Wells is an actress and businesswoman.	Guest	1
Zachary Levi Zachary Levi Pugh is an actor and singer.	Guest	1
Allison Mack Allison Christin Mack is an actor. As an actor, she is best known for her role a... more	Guest	1
Michael Rosenbaum Michael Owen Rosenbaum is an actor, producer, singer, and comedian. He is the ho... more	Guest	2
Jaimie Alexander Jaimie Lauren Alexander is an American actress, best known for portraying Jessi ... more	Guest	1
Brett Dalton Brett Patrick Dalton is an American actor. He is best known for playing Grant Wa... more	Guest	1