Robert Terwilliger, Sr.

Robert Terwilliger, Sr.

Character Information Gender: Male ♂ Status: Alive Hair: Gray Occupation: Doctor Relatives: Sons: Robert and Cecil Terwilliger Wife: Dame Judith Underdunk Grandson: Gino Terwilliger Daughter-in-law: Francesca Terwilliger First appearance: "Funeral for a Fiend" Voiced by: John Mahoney

Dr. Robert Terwilliger, Sr. is Sideshow Bob's father.

When Sideshow Bob was put on trial for trying to kill The Simpsons, he claimed that Bob had suffered from an illness caused by his desire to kill Bart Simpson. Bart threw Sideshow Bob's medication out of a window (believing it to be a biological weapon). This subsequently caused Sideshow Bob to "die". In reality, Bob was injected with a death simulation drug by his father prior to the fated trial in order to conduct a complex plan to kill Bart Simpson via locking him in a coffin and cremating him. He, and the rest of the Terwilliger family, are in prison.

Behind the Laughter

• Robert Terwilliger, Sr. was voiced by John Mahoney, who also plays the father of brothers Frasier and Niles Crane in Frasier, which were voiced by Kelsey Grammer and David Hyde Pierce, the voice actors of Sideshow Bob and his brother Cecil on The Simpsons.
• He has many similarities with the Mayo Clinic Doctor - they both have similar faces and similar hair.

Appearances

• Episode – "Funeral for a Fiend"

[show] Terwilliger Family
Tasha • Robert Terwilliger, Sr. • Judith Underdunk • Bob Terwilliger, Jr. • Cecil Terwilliger • Francesca Terwilliger • Gino Terwilliger • Neil Terwilliger

[show] The Simpsons characters

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[show] Factfiles from Simpsons World the Ultimate Episode Guide: Seasons 1-20

[show] The Family Simpson Homer Simpson • Marge Simpson • Bart Simpson • Lisa Simpson • Maggie Simpson [show] Season 1 Santa's Little Helper • Martin Prince • Mr. Burns • Dr. Marvin Monroe • Herman • Bleeding Gums Murphy • Bob • Jimbo Jones • Jacques • Princess Kashmir • Ugolin and Cesar • Krusty the Clown • Ms. Botz [show] Season 2 Edna Krabappel • Karl • Blinky • The Capital City Goofball • Todd Flanders • Kent Brockman • Captain Lance Murdock • Roger Meyers, Jr. • Lionel Hutz • Akira • Artie Ziff • Reverend Lovejoy • Seymour Skinner • Herb Powell • Emily Winthrop • Bea Simmons • Professor Lombardo • Mr. Bergstrom • General Sherman • Comic Book Guy • Dr. Hibbert [show] Season 3 Michael Jackson/Leon Kompowsky • Congressman Bob Arnold • Ned Flanders • Fat Tony • Scott Christian • Rabbi Krustofski • Millicent • Nelson • Moe Szyslak • Fritz • Justice Of The Peace • Groundskeeper Willie • Smooth Jimmy Apollo • Mr. Teeny • Woodrow • Aristotle Amadopolis • Lou And Eddie • The Veterinarian • Lurleen Lumpkin • Selma • Otto • Milhouse Van Houten • Professor Frink [show] Season 4 Dolph and Kearney • Llewellyn Sinclair • God • Amber Dempsey • Itchy & Scratchy • Surly Joe • Laura Powers • Barney • Baby Bart, 1983 • Barflies • Lyle Lanley • Patty • Pepi • Ralph Wiggum • Chief Wiggum • Carl • Pimple-Faced Kid • Grampa • Richard Nixon • Tattoo Annie • Gabbo [show] Season 5 Nigel • Sideshow Bob • Doug, Benjamin and Gary • Future Burns • Ruth Powers • Brad Goodman • Sea Captain • Mindy Simmons • Ernst And Gunter • Molloy • Bumblebee Man • Apu • Stacy Lovell • Inanimate Carbon Rod • Rod Flanders • Stampy • Simpson Actors • Superintendent Chalmers • Freddy Quimby • Mrs. Jacqueline Bouvier • Adult Education Annex Administrator [show] Season 6 Maude Flanders • Allison Taylor • Itchy And Scratchy • Roger Meyers, Sr. • Birch Barlow • Jessica Lovejoy • Uter • Ashley Grant • Mayor Quimby • Dr. Zweig • Number One • Knight Boat • Database • Don Vittorio • Evan Conover • Ballet Teacher • Crazy Old Man • Hugh Parkfield • Pet Store Man • Leopold • Lunchlady Doris • Jericho • Shelby • Main Suspects (Groundskeeper Willie • Moe • Grampa • Barney • Lisa • Principal Skinner • Tito Puente • Homer • Bart) [show] Season 7 Doctor Colossus • Rainier Wolfcastle • Mrs. Skinner • Nana Van Houten • Jimmy • Dr. Nick Riviera • Mother Simpson • Colonel Leslie "Hap" Hapablap • Matt Groening • Detective Don Brodka • Luigi • Disco Stu • Evelyn Peters • Handsome Pete • Hollis Hurlbut • Waylon Smithers, Jr. • Chester J. 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T. Smash • Howard K. Duff VIII • Francine • Kitenge • Thelonious • The Rich Texan • Coach Lugash • Singing Railroad Hobo [show] Season 13 Judge Constance Harm • Professor Huntington • Gloria • Mesmerino, the Hip Hypnotist • Nibbles the Hamster • Gabriel, the Social Worker • Garth Motherloving • The "Afternoon Yak" Hostesses • Principal Harlan Dondelinger • Greta Wolfcastle • Buck McCoy • Zelda • Ronaldo the Orphan • The Crows • Kang and Kodos • Geoff Jenkins, Animator • Annette, the Squishie Lady • Brunella Pommelhorst, Gym Teacher • Frank Nelson-Type • Johnny Tightlips [show] Season 14 Rock Stars • Audrey McConnell, Third Grade Teacher • Dr. Velimirovic, Plastic Surgeon • Mitch Hartwell, the Reality Channel Producer • Junior (AKA Frank Grimes, Jr.) • Teacher of the Year Award Nominating Committee • Dexter Colt, Private Eye • The Mugger • Larry H. Lawyer, Jr. • Baby Stink-Breath • Booberella • Sara Sloane, Hollywood Movie Star • Cookie Kwan, Red Coat Realtor • Stark Richdale • Declan Desmond • Julio and Grady • Luke Stetson, Junior Wrangler • Suds McDuff, Spokesdog/Mascot for Duff Beer • Marriage Counselor • Jim Proudfoot • Don Castellaneta [show] Season 15 Cora • Repo Depot Men • Edwina • Grant Connor • Curator • Personalized Talking Astrolabe • Roofi • "Robot Rumble" Announcers • Esme Delacroix • Society Matron • Henry • Baby Button-Eyes • Randall Curtis • Gina Vendetti • Matt Groening • Raoul • Pie Man, AKA Simple Simon • Ms. Killebrew • Nash Castor • Elegy for Geezer Rock [show] Season 16 Stuart • Mrs. Muntz • Chloe Talbot • Goose Gladwell • Johnny • Frankie • Deion Overstreet • Alcatraaaz • Howell Huser • The Springfield Glacier • Madam Wu • New England RV-er • Officer Krackney • Jenda • Ray Magini • Tab Spangler • Cameron (Johnny Rainbow) • Andre the Archangel • Vicki and Katja • Father Sean [show] Season 17 Caleb Thorn • Gravedigger Billy • The Pox Princess • A Bicycle Built For Two • Dr. J. Loren Pryor • The Cheery Red Tomatoes • Gino • Mason Fairbanks • The Commandant • Coach Krupt • The Bighorn Sheep • Toot-Toot • Charles Heathbar • Dr. Egoyan • Kavi • Jake Boyman • The Good-Looking Bachelor • Wallace Brady • Tabitha Vixx [show] Season 18 Michael • Defonzo "Skinny" Palmer and Marcus "Marbles" Le Marquez • Coaster Weirdoes • The Colonel • The Editor of American Poetry Perspectives • Opal • Headmaster Greystash • The Grumple • Captain Jack • Darcy • Eleanor Abernathy (At 32) • Stacey Swanson, PH.D. • A.S.S. Delivery Drivers • Paris Texan • The Shadow Knight • Joe LaBoot • Nappien • Strangles the Python • Jack Bauer • Newshound [hide] Season 19 Colby Krause • Julia • Louie • Dwight David Diddlehopper • Norbert "Zack" Van Houten • Milo • Dr. Robert Terwilliger, Sr., and Dame Judith Underdunk • The Forget-Me-Shot • Candidate Ralph Wiggum • Professor Steffan August • Donny • Betsy Bidwell • Chazz Busby • Royce Boss Hogg Lumpkin • Mary Wrestelmania Spuckler • Sundance Film Festival Board Member • Secret Missile Silo Soldier • The Inverted Double-Struck Penny [show] Season 20 Patrick Farrelly • Warrior Statue • Simon Woosterfield • Alberto • The Avenging Antiques • Steve Mobbs • Muk Mu • Juliet Hobbes • Vance Connor • Mr. Becker • Nat and Nancy Gladness • Mother Superior • Tom O'Flanagan • The Parson • Maya • Jenny • Soccer Mom/Helicopter Parent • Alaska Nebraska • Inga