Peter Scolari

as Dave Debusher(2 eps)

as Henry Desmond / Hildegard Desmond (archive footage)

as Paul

as Bishop Thomas Marx(9 eps)

as Mel(1 ep)

as Stephen Schpelnick

as Dr. Zukreski

as Greg(1 ep)

as Patrick

as Hero

as Peter Madoff(4 eps)

as Commissioner Loeb(6 eps)

as Bob

as Self(1 ep)

as Bill

as Tad Horvath(15 eps)

as Zimmer the Keymaster(1 ep)

as Self(1 ep)

as Ray Palmer/The Atom (voice)(1 ep)

as Agent Hardigan

as Mickey Lamm

as Father Mike McGary

as Jonathan Parks

as Seminary Teacher(1 ep)

as Pete Conrad

as Limo Driver / Peter Scolari (voice)(1 ep)

as Billy / Lonely Boy

as Andrew McKillop(2 eps)

as Professor William Fagen Higginson (voice)

as Dad(1 ep)

as Professor Higginson (voice)(1 ep)

as Self - Judge(4 eps)

as Louis

as Parker Reynolds(1 ep)

as Edwin Hadley

as Jake Kimball(1 ep)

as Dr. Dennis Barkley(1 ep)

as Ron(1 ep)

as Pete Conrad(1 ep)

as Wayne Szalinski(66 eps)

as Hooley(1 ep)

as Date #2 (uncredited)

as Howard Grant

as Doug LeSham (voice)(1 ep)

as Troy Chesterfield

as Ringmaster(1 ep)

as Self

as Littlechap

as Kenyon Stanton(1 ep)

as Warren Mosbey(10 eps)

as Colin(1 ep)

as Councilman Kemp(1 ep)

as Glenn(2 eps)

as Preston Vogel (voice)(5 eps)

as Charles Hibbard(1 ep)

as Tim Albright(1 ep)

as Kyle Evans(1 ep)

as Donald Himmel

as Brad (voice)(1 ep)

as Johnny Lake(1 ep)

as Leslie Tilbert(1 ep)

as Charles Danson

as Jonathan Lerner(8 eps)

as Fred(2 eps)

as Ken Ballantine(37 eps)

as Wilford Wolf (voice)(1 ep)

as The Driver (voice)(1 ep)

as Stuart Hofferman(1 ep)

as Clerk(1 ep)

as The Shark (voice)(1 ep)

as Hamner (voice)(1 ep)

as Dr. Zach Drummond

as David Katz

as Derek Sanders

as Paul DeWitt

as Simon Tanner

as David Day

as Chris Robinson

as Self

as Mr. Bill

as Leonard Randall / Delos of Atlantis(1 ep)

as Elliot

as Ted Caton(1 ep)

as Dr. Jerry Menzies

as Phil

as Robert Duff

as Woody

as Michael Harris(142 eps)

as Albie Fervitz(1 ep)

as Paul Kenter(1 ep)

as Henry Desmond / Hildegarde(38 eps)

as Douglas Burdett

as Benny Loman(13 eps)

as Kookie ("1950's")

as Wellington Davis Rothmeyer(1 ep)