Michael Keaton
Jack Frost

Kelly Preston
Gabby Frost

Mark Addy
Mac MacArthur

Joseph Cross
Charlie Frost

Henry Rollins
Sid Gronic

Mika Boorem
Natalie

Andrew Lawrence
Tuck Gronic

Eli Marienthal
Spencer

Will Rothhaar
Dennis

Taylor Handley
Rory Buck

Paul F. Tompkins
Audience Member

Dweezil Zappa
John Kaplan

Jay Johnston
TV Weatherman

Googy Gress
Spencer's Dad

Wayne Federman
Policeman Dave

Trevor Rabin
Trevor (Lead Guitar)

Benjamin Brock
Alexander

Joe Rokicki
Mitch

Cameron Ferre
Pudge

Ahmet Zappa
Snowplow Driver

Steve Giannelli
Referee

Jeff Cesario
Radio Announcer

Scott Thomson
Dennis' Dad

Scott Kraft
Natalie's Dad

Jimmy Michaels
Devil's Goalie

Ajai Sanders
Interviewer

John Ennis
Truck Driver

Golden Henning
Bank Customer

Pat Crawford Brown
Scorekeeper

Mr. Chips
Chester The Dog

Denise Cheshire
In Suit Performer

Bruce Lanoil
In Suit Performer

Lili Haydn
Lili (Violin)

Louis Molino III
Lou (Drummer)

Scott Colomby
Scott (Bass)

Nakia Burrise
Bank customer (uncredited)

Mike Butters
Devil's Coach (uncredited)

Rich Knight
Club Goer (uncredited)

Jazzie Mahannah
Featured (uncredited)

Rusty Nelson
School Teacher (uncredited)

Jennifer Robertson
Brooke (uncredited)

Moon Unit Zappa
School Teacher (uncredited)