Brigsby Bear

Kyle Mooney

As James Pope

Mark Hamill

As Ted Mitchum

Jorge Lendeborg Jr.

As Spencer

Matt Walsh

As Greg Pope

Michaela Watkins

As Louise Pope

Ryan Simpkins

As Aubrey Pope

Greg Kinnear

As Detective Vogel

Alexa Demie

As Meredith

Jane Adams

As April Mitchum

Claire Danes

As Emily

Beck Bennett

As Detective Bander

Chance Crimin

As Logan

Andy Samberg

As Eric

Kate Lyn Sheil

As Arielle Smiles

James Anthony Green

As Police Officer

Kim Fischer

As Female Reporter

Kelly Chapman

As News Anchor

Nick Rutherford

As Brigsby Bear fan

Reagan Pineda

As Reality Talking Head

Kiera Milan Hendricks

As Young Smiles Sisters

Tim Heidecker

As Coach Brad

Rex Morgan

As Gordo

Ellery Davidson

As Hannah Slice

Christopher Sullivan

As FBI Agent

Joseph Paul Branca

As Space Alien

Nikolas Mikkelsen

As Theatre Patron

Matthew P. Watts

As Prison Guard

Ashlyn Brooke Anderson

As Wizzle Prince (uncredited)

Yvonne D Bennett

As Party Guest (uncredited)

Kami Christiansen

As Nurse (uncredited)

Paul Nathan Cuthbert

As Prison Visitor (uncredited)

Teresa Duran-Norvick

As Premiere Audience (uncredited)

Gerry Garcia

As (uncredited)

Angella Joy

As Reporter (uncredited)

Marilyn Miller

As Court Reporter (uncredited)

Chris Provost

As Prison Guard (uncredited)

Seth Williams

As Cameraman (uncredited)

Julio Torres

As Man Getting Haircut (uncredited)