- Frank Gingerich
- Doug - Age 12
- Morgan Gingerich
- Doug - Age 12
- Annette O'Toole
- Stephanie Kenney
- Harry Groener
- Harry Kenney
- Martin Mull
- Modern Doug
- David Wain
- Interviewer
- Domhnall Gleeson
- Henry Beard
- Will Forte
- Douglas Kenney
- Ben F. Campbell
- Harvard Jester
- Jon Klaft
- Preppy Student
- Camille Guaty
- Alex Garcia-Mata
- Brad Morris
- Peter Ivers
- Carla Gallo
- Lucy Fisher
- Beau Bassewitz
- Umpire
- Rick Overton
- First Publisher
- Mark Metcalf
- Second Publisher
- David Krumholtz
- Time-Life Publisher
- Mitchell Hurwitz
- Time-Life Publisher
- Matt Walsh
- Matty Simmons
- Elvy
- Mary Marshmallow
- Michael Colton
- Art Director
- John Aboud
- Art Director
- Thomas Lennon
- Michael O'Donoghue
- Michael Sherman
- Ed Sullivan
- Matt Lucas
- Tony Hendra
- Kerri Kenney
- Sullivan Producer
- Natasha Lyonne
- Anne Beatts
- Bob Stephenson
- Construction Worker
- Neil Casey
- Brian McConnachie
- Ellen Colton
- Waitress
- Liz Femi
- Skeptical Black Woman
- Chris Redd
- Skeptical Black Man
- Krister Johnson
- Michael Gross
- Peter Blake
- Advertiser
- Mike Nojun Park
- Advertiser
- Gregg Turkington
- Advertiser
- Ed Helms
- Tom Snyder
- Jackie Tohn
- Gilda Radner
- Jon Daly
- Bill Murray
- Seth Green
- Christopher Guest
- John Gemberling
- John Belushi
- Rick Glassman
- Harold Ramis
- Joel McHale
- Chevy Chase
- Michael Kevin Farrell
- Radio Hour Pianist / Premiere Party Pianist (as Michael Farrell)
- Adam Wade
- Radio Hour Drummer / Premiere Party Drummer
- Meera Rohit Kumbhani
- Elaine
- Jherek Bischoff
- Lemmings Bass Player
- Craig Wedren
- Lemmings Piano Player
- Nelson Franklin
- P.J. O'Rourke
- Emmy Rossum
- Kathryn Walker
- Sam Mickens
- Street Musician
- Armen Weitzman
- Lorne Michaels
- Max Greenfield
- Chris Miller
- Lonny Ross
- Ivan Reitman
- Joe Lo Truglio
- Brad
- Finn Wittrock
- Tim Matheson
- Steven Sims
- Stephen Furst
- Brian Huskey
- John Landis
- Julian Wass
- Premiere Party Guitar Player
- Bo Boddie
- Premiere Party Guitar Player
- Rich Sommer
- Harry Crane
- Kate Simmons
- Party Guest
- Abigail Klein
- Missy
- Andrew Gray McDonnell
- Michael O'Keefe
- Erv Dahl
- Rodney Dangerfield
- Paul Scheer
- Paul Shaffer
- Martha Smith
- Studio Tour Guide 'Babs'
- Hutch Barbeau
- Studio Tour Kid
- Leslie Nielsen
- Dr. Rumack
- Robert Hays
- Ted Striker
- Lorna Patterson
- Randy
- Matt Ballard
- Bartender
- Melissa Paulo
- Room Service Waitress
- Lindsey Kraft
- Gwyneth Cravens
- Christopher Arminio
- National Lampoon Staffer
- James Baker
- Doug Niedermeyer
- Bambadjan Bamba
- Taxi Driver
- Garrett Boyd
- Young Omega Chip Diller
- Guile Branco
- Rick Meyerowitz
- Jack Cook
- Dan Aykroyd
- T.C. Daniels
- Brian Doyle-Murray
- Gina Dunlap
- Dancer
- Paige Flannery
- Stoned College Kid
- Austin Hanner
- Harvard Student
- Steffi Hill
- Bikini Girl
- Jake Jacobson
- Ted Knight
- Allyson Nicole Jones
- Student
- Shannon Klein
- Pool Girl
- Forrest Lark
- Daniel Keeney
- Sean Leo
- Boy Scout
- Christina Miller
- Funeral Guest
- Lauryn Morse
- Cheerleader Captain
- Heidi Brook Myers
- Additional Voices
- Henry Nolin
- Teen in Cadillac
- Devin O'Kelly
- Kid Talking in Library
- Hunter Paul
- Sketchy Party Guest
- Sandra Rosko
- Stoner College Kid
- Dallas Ryan
- Sound Guy
- David Sampen
- Caddyshack Film Crew
- Tim Seitter
- Kroger
- Noah Thorne
- Party swimmer
- Bruce E. Wayne
- National Lampoon Staffer
