Celebrity guests check in to a 'Nightmare Clinic' in an attempt to overcome their nightmares.
Aubrey Plaza
Herself / Julie Jacobs
Jack McBrayer
Mr. McDougal
Pam Murphy
Mrs. McDougal
Lucas Barker
Timmy
Matt Besser
Monica's dad
Nathan Fillion
Himself
Seth Kirschner
Paul
Darcy Fowler
Monica
Eugene Cordero
Drake
Gary Richardson
Turg
