Full Cast — Grandma's Boy (2006)

Allen Covert

Alex

Doris Roberts

Grandma Lilly

Linda Cardellini

Samantha

Joel David Moore

J.P.

Shirley Knight

Bea

Shirley Jones

Grace

Nick Swardson

Jeff

Jonah Hill

Barry

Peter Dante

Dante

Kelvin Yu

Kane

Kevin Nealon

Mr. Cheezle

Rob Schneider

Yuri

David Spade

Shiloh

Shana Hiatt

Pamela Mills

Chuck Church

Dan

Todd Holland

Mover #1

Scott Halberstadt

Bobby, Co-Worker #1

Heidi Hawking

Milk Maid

John Kirk

Businessman

Joe Koons

Best Man

Bryan Ling

DJ

Geno Kirkland

Party Guy

Danni Katz

Party Girl (uncredited)

Jonathan Loughran

Josh

Kevin Nash

Mover #2

Randal Reeder

Biker

Ross Mark

Groom

Katherine Ann McGregor

Mrs. K

Abdoulaye N'Gom

Dr. Shakalu

Jen Sung

Mr. Lee Ho

Evan Paley

Timmy

Bryan Ross

Party Thug

Stryker

Restaurant Host