Seth MacFarlane Captain Ed Mercer Actor, Executive Producer Adrianne Palicki Commander Kelly Grayson Actor Penny Johnson Dr. Claire Finn Actor Scott Grimes Lieutenant Gordon Malloy Actor Peter Macon Lieutenant Commander Bortus Actor Halston Sage Chief Security Officer Alara Kitan Actor J. Lee Lieutenant John Lamarr Actor Mark Jackson Isaac Actor Larry Joe Campbell Steve Newton Guest Star Mike Henry Dann Guest Star Norm Macdonald Yaphit Guest Star Kai Wener Ty Finn Guest Star BJ Tanner Marcus Finn Guest Star Victor Garber Admiral Halsey Guest Star Paul Vogt Horbalak Captain Guest Star Michael J. Sielaff Palovis Guest Star Brannon Braga Executive Producer David A. Goodman Executive Producer Jason Clark Executive Producer Liz Heldens Executive Producer