Joanne

Cara Buono

Abraham

Isaach de Bankolé

Jill

Sharon Wilkins

Alien

Joel de la Fuente

Baker

Robert Downey Sr.

Brian's Mom

Marcia Jean Kurtz

Brian's Dad

Larry Block

Mrs. Kim

Lori Tan Chinn

Big Lab Assistant

Jay Oakerson

Small Lab Assistant

Gregory Korostishevsky

Information Librarian

Kristen Schaal

Curator

Peter Bartlett

Brian

David Lansbury

Psychiatrist

Laura Esterman

Vegetarian

Susham Bedi

Guard

Ed Wheeler

Henry

Jonah Meyerson

Doctor

Richard M. Davidson

Science Reporter

David Smilow

Farmer

Michael Clinton

Confessor

Joseph McKenna

Woman Gambler

Lori Braverman

Jerry

Alberto Vasquez

Linda

Quinn Shephard

Rosselli

Tyagi Schwartz

Frieda

Johann Carlo

Jack

Ethan Crough

Peter

Kola Ogundiran

Tourist

Sean Sutherland

News Reporter

Peri Smilow

Admissions Person

Dwandra Nickole

Conservator

Traci Parks

Steve

Robert Peters

Miriam

Melissa Leo

Larry

Paul Lazar

Shirley

Helen Hanft

Sam

Jimmy Gary Jr.

Frank

Rony Clanton

Director

Barry Strugatz

Craft Service

Roni Armstrong