Guest Stars LeVar Burton as Dr. Aloysius Negari Shaughn Buchholz as Pitchman Andy Daly voices Sam Hansen Laverne Cox as Liquia Mark Hamill voices Xander Sara Gilbert as Jathryn Co Starring Anthony Holiday as Nurmph Malloy Emily Kosloski as Vandrea Malloy Jeff Heapy as Mario Malik McCall as Terv Mackadoo Ajay Vidure as Blarnaby Krystina S. Bailey as Bethesda