Daryl Hannah

as Brook Wilder

John Schneider

as Daniel Wilder

Armand Assante

as Hamilton Lux

F. Murray Abraham

as Professor Bill Girdler

Roark Critchlow

as Professor Phillip Wilder

Heather McComb

as Amy Zuckerman

John Enos III

as Kane Markus

Alan Fudge

as Pastor Herman

Gene Davis

as Sheriff Dexter Murray

Brent King

as Clint Duran

June Squibb

as Bess Wilder

Raymond O'Connor

as George Banks

Elisa Donovan

as Brenda

Mimi Michaels

as Kim Wilder

Jacleen Haber

as Tia

Darcy Rose Byrnes

as Heather

Tiffany Hines

as Michelle

Karen Strassman

as Heather's Mom

Paydin LoPachin

as Stacy

Nicole Gabriella Scipione

as Alice

Patsy Fitzgerald

as Kayak Girl

Jenn Gulotta

as Medical Intern

Jessica Lynn Sadowski

as Shark victim

Willie C. Carpenter

as Mayor

Mel Fair

as Heather's Dad

Frank Sivero

as Davey Ballew

Jim Hanks

as Nick Atkins

E.J. Callahan

as Al Maynard

David Thomas Jenkins

as Weezer

Tony Clarno

as Lifeguard

George Hobbs

as TV News Reporter

Bob Bledsoe

as Security Guard

Chet Grissom

as Greg

Rick Scarry

as Doctor Taylor

Timothy Lynch

as Weaver

Shane van Dyke

as Chris

Kurt Meyer

as Bob the Tow Truck Driver

Solly Assa

as Dirk Wilder

Tom Mesmer

as Innertube Victim

Victoria Chalaya

as Reporter (uncredited)