The Flintstones: On the Rocks With their marriage on the rocks, Fred and Wilma take a holiday together to rekindle the fire in their relationship. Details Casts Posters Title The Flintstones: On the Rocks Release Date 2001-11-03 Runtime 01 Hours 25 Minutes Genres Animation Comedy Family Production Companies Cartoon Network Studios, Hanna-Barbera Productions Production Countries Canada, United States of America Jeff Bergman... Fred Flintstone / Parking... Tress MacNeille... Wilma Flintstone / Woman ... Kevin Michael Richardson... Barney Rubble / Hector / ... Grey DeLisle... Betty Rubble / Mystery Wo... Jeff Bennett... Villain / Xavier / Announ... Frank Welker... Dino / Monkey / Elevator ... Tom Kenny... Bellboy / Vendor / Bowlin... Zelda Rubinstein... Psychiatrist (voice)... Joseph L. Altruda ... Stoney Altruda (voice)... John Kassir... Concerge / Bartender / Bo... John Stephenson... Mr. Slate (voice)... Oren Waters... Singer (baritone) (voice)... Maxi Anderson... Singer (soprano) (voice)... Carmen Twillie... Singer (tenor) (voice)... Wil Wheaton... Singer (bass) (voice)... Original Size (800x1200)