Helen Hunt

Jo

Bill Paxton

Bill

Jami Gertz

Melissa

Cary Elwes

Jonas

Lois Smith

Aunt Meg

Philip Seymour Hoffman

Dusty

Alan Ruck

Rabbit

Sean Whalen

Sanders

Scott Thomson

Preacher

Todd Field

Beltzer

Joey Slotnick

Joey

Wendle Josepher

Haynes

Jeremy Davies

Laurence

Zach Grenier

Eddie

Gregory Sporleder

Willie

Patrick Fischler

The Communicator

Nicholas Sadler

Kubrick

Ben Weber

Stanley

Anthony Rapp

Tony

Erik LaRay Harvey

Eric

Abraham Benrubi

Bubba

Jake Busey

Mobile Lab Technician

Melanie Hoopes

Patty

Richard Lineback

Father

Rusty Schwimmer

Mother

Alexa PenaVega

Jo – 5 years old

Taylor Gilbert

NSSL Scientist – Bryce

Bruce Wright

NSSL Scientist – Murphy

Darryl Cox

Four Corners Mechanic (uncredited)

Mark Falvo

Survivor (uncredited)