Mark Addy

Character: Fred Flintstone

Stephen Baldwin

Character: Barney Rubble

Kristen Johnston

Character: Wilma Slaghoople

Jane Krakowski

Character: Betty O'Shale

Joan Collins

Character: Pearl Slaghoople

Thomas Gibson

Character: Chip Rockefeller

Alan Cumming

Character: The Great Gazoo / Mick Jagged

Harvey Korman

Character: Colonel Slaghoople

Alex Meneses

Character: Roxie

John Taylor

Character: Keith Richrock

Tony Longo

Character: Big Rocko

Danny Woodburn

Character: Little Rocko

Taylor Negron

Character: Gazaam / Gazing

Jack McGee

Character: Bronto Crane Examiner

David Jean Thomas

Character: Bronto Crane Examiner

Brian Coughlin

Character: Bronto Crane Worker

Richard Karron

Character: Bronto Crane

Jennifer Simard

Character: Bride-To-Be

Heather Simpson

Character: Tennis Girl

Chene Lawson

Character: Kitty

Beverly Sanders

Character: Photographer

John Cho

Character: Parking Valet

Nora Burns

Character: Party Guest

Mark Kubr

Character: Party Guest

Cheryl Holdridge

Character: Genvieve

Buck Kartalian

Character: Old Man at Bronto King

Matt Griesser

Character: Booth Worker

Irwin Keyes

Character: Joe Rockhead

Mary Jo Smith

Character: Gambler Woman

Duane Davis

Character: Goon

Kevin Grevioux

Character: Associate Goon

Steve Schirripa

Character: Croupier

John Wills Martin

Character: Casino Security Guard

Lucille M. Oliver

Character: Hotel Worker

Joel Virgel

Character: Keyboard Player

Rachel Winfree

Character: Confessor

Ted Rooney

Character: Confessor

Jim Doughan

Character: Dinosaur Confessor

Jason Kravits

Character: Choreographer

John Stephenson

Character: Showroom Announcer

Brian Mahoney

Character: Audience Man

Ann Martel Mahoney

Character: Audience Woman

Walter Gertz

Character: Wedding Minister

Mel Blanc

Character: Puppy Dino (voice)

Rosie O'Donnell

Character: Octopus Masseuse (voice)

William Hanna

Character: Special Appearance

Joseph Barbera

Character: Special Appearance

Jennifer Arden

Character: Rockette

Jennifer Bachler

Character: Rockette

Tracie Burton

Character: Rockette

Teresa Chapman

Character: Rockette

Jacqueline Case

Character: Rockette

Betsy Chang

Character: Rockette

Darlene Dillinger

Character: Rockette

Kristen Dinsmore

Character: Rockette

Tracie Hendricks

Character: Rockette

Helena Hultberg

Character: Rockette

Katherine Miller

Character: Rockette

Jessica Page

Character: Rockette

Kim Timbers-Patteri

Character: Rockette

Cristal Williams

Character: Rockette

Kristen Stewart

Character: Ring Toss Girl (uncredited)

Alisa Hensley

Character: Woman at Pool

Janet Dey

Character: Party Guest (uncredited)

George Sasaki

Character: Casino Patron (uncredited)