Mr. Mason Dixon

Mr. Mason Dixon (Steve Whitmire) is a member of the WESAYSO board of executives presiding over the Sexual Harris hearings in the Dinosaurs episode "What "Sexual" Harris Meant". The Southern-accented Mr. Dixon has a used car dealer brother and has sexual fantasies involving marmalade.

His name is a reference to the Mason-Dixon Line, which is used symbolically in the United States as a supposed cultural boundary between what is referred to as the North and the South.

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Media Dinosaurs (episode list) • Videography • Creating Dinosaurs: The Sketches That Started It All • Dinosaurs (comic book) • Big Songs • I'm the Baby (Gotta Love Me) • Dinosaurs Live! Characters Main: Earl Sinclair • Fran Sinclair • Robbie Sinclair • Charlene Sinclair • Baby Sinclair Supporting: Ethyl Phillips • Roy Hess • Bradley P. Richfield • Monica DeVertebrae • Spike • Mindy • Howard Handupme Others: Mr. Ashland • Mel Luster • Gary • Buddy Glimmer • Predator • Sparky • General Chow • Cabby • Maurice • Caroline Foxworth • Solomon the Great • Ramona • Gus Molehill • Glenda Molehill • Al "Sexual" Harris • Otto Lynch • Mason Dixon • Barry Wolfe • Harold Heffer • Jerry Valentine • Grandpa Louie • Cookie Creature • General H. Norman Conquest • Edward R. Hero • Fox Jacket • Heather Worthington • André • Baby Cuddlebunny • Wereman • Dr. Ficus • Zabar • Wendy Richfield • Muse • Henri and Simone Poupon • Francois Poupon • Chief Elder • Dolf • Howlin' Jay • Igor • Winston • Dr. Herder • The Babysitter • Blarney • Dr. Elliott Piaget • Bert • Stan • Ray Gherkin • Georgie • Cavepeople • Cavelings • Ling Ling and Chang Chang • Miss Honeywell • Sir David Tushingham • Pearl Sinclair Episodes Season One: "The Mighty Megalosaurus" • "The Mating Dance" • "Hurling Day" • "High Noon" • "The Howling" Season Two: "The Golden Child" • "Family Challenge" • "I Never Ate for My Father" • "Charlene's Tale" • "Endangered Species" • "Employee of the Month" • "When Food Goes Bad" • "Career Opportunities" • "Unmarried... with Children" • "How to Pick Up Girls" • "Switched at Birth" • "Refrigerator Day" • "What "Sexual" Harris Meant" • "Fran Live" • "Power Erupts" • "The Clip Show" • "A New Leaf" • "The Last Temptation of Ethyl" • "Nuts to War" • "And the Winner is..." • "Slave to Fashion" • "Leader of the Pack" • "WESAYSO Knows Best" Season Three: "Nature Calls" • "Baby Talk" • "Network Genius" • "The Discovery" • "Little Boy Boo" • "Germ Warfare" • "Hungry for Love" • "License to Parent" • "Charlene's Flat World" • "Wilderness Weekend" • "The Son Also Rises" • "Getting to Know You" • "Green Card" • "Out of the Frying Pan" • "Steroids to Heaven" • "Honey, I Miss the Kids" • "Swamp Music" • "Dirty Dancin'" • "If I Were a Tree" • "We Are Not Alone" • "Charlene and Her Amazing Humans" • "The Clip Show II" Season Four: "Monster Under the Bed" • "Earl, Don't Be a Hero" • "The Greatest Story Ever Sold" • "Driving Miss Ethyl" • "Earl's Big Jackpot" • "Terrible Twos" • "Changing Nature" Unaired: "Scent of a Reptile" • "Earl and Pearl" • "Life in the Faust Lane" • "Variations on a Theme Park" • "Working Girl" • "Into the Woods" • "Georgie Must Die!" Locations Pangaea • The Sinclair Home • Sinclair City • WESAYSO • B.P. Richfield's Trailer • Bob LaBrea High School • Mel Luster's Mating Dance Academy • Department of Marriage Vows • Absolute Proof Laboratories • Kave Mart • Le Predateur • Meteor Tiki Lounge • Silent Springs • Wesaysoland Miscellaneous Dinosaur TV • DNN • DTV • Antediluvian Broadcasting Company • The Great Potato