Guest Stars Fred Armisen voices Gavin Jermaine Fowler voices Demarcus Julian Barratt voices Harold the Guard Alfred Molina voices Rupert Ellie Kemper voices Mudria Jordi Mollà voices King Diego Belafonte Nonso Anozie voices Gregor Julian Barratt voices Ace Alfred Molina voices Neil Co Starring Fred Armisen voices Additional Voices Peter Serafinowicz voices Additional Voices Gillian Jacobs voices Additional Voices Wendi McLendon-Covey voices Additional Voices Jon Daly voices Additional Voices Horatio Sanz voices Additional Voices Alfred Molina voices Additional Voices Jermaine Fowler voices Additional Voices