Dr. JoAnne 'Jo' Thornton-Harding

Helen Hunt

William Harding

Bill Paxton

Dr. Jonas Miller

Cary Elwes

Dr. Melissa Reeves

Jami Gertz

Meg Greene

Lois Smith

Robert 'Rabbit' Nurick

Alan Ruck

Dustin Davis

Philip Seymour Hoffman

Sanders

Sean Whalen

Laurence

Jeremy Davies

Jason 'Preacher' Rowe

Scott Thomson

Tim 'Beltzer' Lewis

Todd Field

Eddie

Zach Grenier

Joey

Joey Slotnick

Kubrick

Nicholas Sadler

Bubba

Abraham Benrubi

Haynes

Wendle Josepher

Mobile Lab Technician

Jake Busey

Willie

Gregory Sporleder

Eric

Eric LaRay Harvey

The Communicator

Patrick Fischler

Stanley

Ben Weber

Tony

Anthony Rapp

Patty

Melanie Hoopes

Dean

J. Dean Lindsay

Diner Mechanic

Dan Kelpine

Waitress

Sharonlyn Morrow

Father

Richard Lineback

Mother

Rusty Schwimmer

Five Year Old Jo

Alexa Vega

NSSL Scientist Bryce

Taylor Gilbert

NSSL Scientist Murphy

Bruce Wright

TV Meteorologist No. 1

Gary England

TV Meteorologist No. 2

Jeff Lazalier

TV Meteorologist No. 3

Rick Mitchell

Paramedic

John Thomas Rhyne

Bodger

Paul Douglas

Drive-In Girl

Samantha McDonald

Farm Girl

Anneke De Bont

Drive-In Girl

Jennifer L. Hamilton