Marc Evan Jackson

as Mayor Twiss

as Lars Svik (voice)

as Lehi Sorenson (1 episode)

as Kermit the Frog as Captain Abraham Smollett

as (voice) (2 episodes)

as Kermit / Bob Cratchit

as Kermit the Frog

as Kermit the Frog

as Kermit the Frog

as Evan Cubbler (3 episodes)

as Uncle Rick

as Bruce Marcus

as Arthur Page

as Dr. Leland Mason (6 episodes)

as Professor Carlisle (voice) (1 episode)

as The Speaker (voice) (1 episode)

as Gunnar

as Self

as Wallace Faulkner (1 episode)

as Alan Strong (1 episode)

as Dr. Girard

as Police Officer Bailey

as Robinson

as Syvek (voice) (1 episode), as Sickbay Attendant 1 (voice) (1 episode)