Guest Stars Nate Corddry as Commander MacKenzie Reed Diamond as Commander Westin Co Starring Hattie Kragten as Constance Randal Edwards as Dr. Richard Grove Kate Hewlett as Mrs. Grove Blessing Adedijo as Zilla Ellen Olivia as Penny Judd Roger Shank as Commander Chapin Kaitlyn Thomas as Jehosheba's Friend Martha Girvin as Mrs. Chapin
