Kyle Mooney

Character: James Pope

Mark Hamill

Character: Ted Mitchum

Jorge Lendeborg Jr.

Character: Spencer

Matt Walsh

Character: Greg Pope

Michaela Watkins

Character: Louise Pope

Ryan Simpkins

Character: Aubrey Pope

Greg Kinnear

Character: Detective Vogel

Alexa Demie

Character: Meredith

Jane Adams

Character: April Mitchum

Claire Danes

Character: Emily

Beck Bennett

Character: Detective Bander

Chance Crimin

Character: Logan

Andy Samberg

Character: Eric

Kate Lyn Sheil

Character: Arielle Smiles

James Anthony Green

Character: Police Officer

Kim Fischer

Character: Female Reporter

Kelly Chapman

Character: News Anchor

Nick Rutherford

Character: Brigsby Bear fan

Reagan Pineda

Character: Reality Talking Head

Kiera Milan Hendricks

Character: Young Smiles Sisters

Tim Heidecker

Character: Coach Brad

Rex Morgan

Character: Gordo

Ellery Davidson

Character: Hannah Slice

Christopher Sullivan

Character: FBI Agent

Joseph Paul Branca

Character: Space Alien

Nikolas Mikkelsen

Character: Theatre Patron

Matthew P. Watts

Character: Prison Guard

Ashlyn Brooke Anderson

Character: Wizzle Prince (uncredited)

Yvonne D Bennett

Character: Party Guest (uncredited)

Kami Christiansen

Character: Nurse (uncredited)

Paul Nathan Cuthbert

Character: Prison Visitor (uncredited)

Teresa Duran-Norvick

Character: Premiere Audience (uncredited)

Gerry Garcia

Character: (uncredited)

Angella Joy

Character: Reporter (uncredited)

Marilyn Miller

Character: Court Reporter (uncredited)

Chris Provost

Character: Prison Guard (uncredited)

Seth Williams

Character: Cameraman (uncredited)

Julio Torres

Character: Man Getting Haircut (uncredited)