Guest Star :: Wallace Shawn
Wallace Shawn is an American actor, playwright and writer. He is best known for his roles in the films The Princess Bride, Clueless and the Toy Story series.
His other film credits include the Woody Allen film Manhattan, All That Jazz, and My Dinner with Andre. In his memorable role in The Princess Bride, Shawn played Vizzini who repeatedly uttered the phrase "Inconceivable!" as his convoluted plans fell apart. Along with voicing the dinosaur Rex in the Toy Story films, Shawn has also lent his voice to films including A Goofy Movie, The Incredibles, and Chicken Little.
Shawn also starred in the 1995 film Clueless as lonely teacher Mr. Hall, who was exasperated by student Cher who later set him up with another teacher. He reprised the role in the short-lived 1996 TV series. Shawn's other TV credits include recurring roles on The Cosby Show, Star Trek: Deep Space Nine, Crossing Jordan, Gossip Girl, and Mozart in the Jungle. He has also made guest appearances in shows including Ally McBeal, Sex and the City, Desperate Housewives, and Mr. Robot.
As a playwright, Shawn has produced plays which include Marie and Bruce, Aunt Dan and Lemon, The Designated Mourner, and The Threepenny Opera. He has also published two collections of essays.
Wallace Shawn has guest starred in 50 episodes of Young Sheldon.
119. Gluons, Guacamole, and the Color Purple as Dr. John Sturgis
Aired April 19, 2018
No longer feeling challenged by the high school curriculum, Sheldon audits a class taught by a brilliant scientist, Dr. John Sturgis.
121. Summer Sausage, a Pocket Poncho, and Tony Danza as Dr. John Sturgis
Aired May 3, 2018
As Sheldon is forced to watch Dr. John Sturgis's budding relationship with Meemaw from a distance, George Sr. and Mary take the opportunity to bond with their other children.
122. Vanilla Ice Cream, Gentlemen Callers, and a Dinette Set as Dr. John Sturgis
Aired May 10, 2018
When Ira Rosenbloom asks Meemaw out on a date, Dr. Sturgis finds the challenge of another man exhilarating.
202. A Rival Prodigy and Sir Isaac Neutron as Dr. John Sturgis
Aired September 27, 2018
When Dr. John Sturgis invites another ten-year-old genius to audit his course, Sheldon feels jealous of the attention he's giving to Paige.
205. A Research Study and Czechoslovakian Wedding Pastries as Dr. John Sturgis
Aired October 18, 2018
Dr. Sturgis tells George about a research study on twins.
207. Carbon Dating and a Stuffed Raccoon as Dr. John Sturgis
Aired November 1, 2018
When John stops by Meemaw's yard sale, he inadvertently makes her see she isn't ready to part with her late husband's belongings.
209. Family Dynamics and a Red Fiero as Dr. John Sturgis
Aired November 15, 2018
John joins the Cooper family for Thanksgiving dinner.
210. A Stunted Childhood and a Can of Fancy Mixed Nuts as Dr. John Sturgis
Aired December 6, 2018
John decides to learn how to drive and asks Meemaw to be his instructor.
213. A Nuclear Reactor and a Boy Called Lovey as Dr. John Sturgis
Aired January 17, 2019
John invites Meemaw to be his plus-one at a university event.
215. A Math Emergency and Perky Palms as Dr. John Sturgis
Aired February 7, 2019
After Dr. Sturgis gives Sheldon a 95% score on a test, the two face off in an intellectual battle of wits.
218. A Perfect Score and a Bunsen Burner Marshmallow as Dr. John Sturgis
Aired April 4, 2019
When Sheldon wants to attend college full time, Dr. Sturgis agrees to let Sheldon live with him on a trial basis.
219. A Political Campaign and a Candy Land Cheater as Dr. John Sturgis
Aired April 25, 2019
When Sheldon calls Dr. Sturgis for advice on public speaking, his story of being hit by lightning on the mini golf course doesn't help.
220. A Proposal and a Popsicle Stick Cross as Dr. John Sturgis
Aired May 2, 2019
John takes Meemaw out for dinner on the one-year-anniversary of their first date.
221. A Broken Heart and a Crock Monster as Dr. John Sturgis
Aired May 9, 2019
John sees another side of Meemaw when he joins her at a casino.
222. A Swedish Science Thing and the Equation for Toast as Dr. John Sturgis
Aired May 16, 2019
John is distressed by the upcoming announcement of the Nobel Prize winners as he realizes his dream of winning one is not going to be realized.
305. A Pineapple and the Bosom of Male Friendship as Dr. John Sturgis
Aired October 24, 2019
When Dr. Sturgis returns from the mental hospital, he abruptly breaks up with Meemaw.
306. A Parasol and a Hell of an Arm as Dr. John Sturgis
Aired November 7, 2019
When Mary takes Sheldon to John's class, he wonders how Connie is doing.
307. Pongo Pygmaeus and a Culture that Encourages Spitting as Dr. John Sturgis
Aired November 14, 2019
Sheldon calls Dr. Sturgis for advice after he gets into an Internet flame war.
308. The Sin of Greed and a Chimichanga from Chi-Chi's as Dr. John Sturgis
Aired November 21, 2019
Dr. Sturgis invites George out to a bar to talk about a job at the university.
309. A Party Invitation, Football Grapes and an Earth Chicken as Dr. John Sturgis
Aired December 5, 2019
After John sees Connie for the first time since their break-up, he needs a little male bonding time with George.
310. Teenager Soup and a Little Ball of Fib as Dr. John Sturgis
Aired December 12, 2019
Dr. Sturgis goes to Dale's sporting goods store to spy on Meemaw's latest boyfriend.
312. Body Glitter and a Mall Safety Kit as Dr. John Sturgis
Aired January 16, 2020
John gives Sheldon advice when he worries that Paige no longer wants to be smart.
313. Contracts, Rules and a Little Bit of Pig Brains as Dr. John Sturgis
Aired January 30, 2020
John joins George and Georgie on a camping trip with Meemaw's boyfriend, Dale.
315. A Boyfriend's Ex-Wife and a Good Luck Head Rub as Dr. John Sturgis
Aired February 13, 2020
Sheldon is upset when Dr. Sturgis assigns his class a group project. Meanwhile, John runs into Meemaw and Dale's ex-wife at a bar.
316. Pasadena as Dr. John Sturgis
Aired February 20, 2020
After John notices that Sheldon is distracted in class, he learns that Sheldon wants to attend a lecture being given by Dr. Stephen Hawking.
317. An Academic Crime and a More Romantic Taco Bell as Dr. John Sturgis
Aired March 5, 2020
After Sheldon helps Dr. Sturgis with a scientific problem, he is upset when John doesn't give him co-author credit.
320. A Baby Tooth and the Egyptian God of Knowledge as Dr. John Sturgis
Aired April 16, 2020
During his anaesthesia-induced dream, Sheldon imagines Dr. Sturgis inviting him into a circus tent to talk to the Egyptian God of Knolwedge.
321. A Secret Letter and a Lowly Disc of Processed Meat as Dr. John Sturgis
Aired April 30, 2020
Dr. Sturgis appears on Sheldon's video to support his argument that he should attend East Texas Tech.
401. Graduation as Dr. John Sturgis
Aired November 5, 2020
As Sheldon prepares to graduate from high school, he starts to question whether he is ready to go to college. Meanwhile, Dale tries to patch things up with Meemaw.
406. Freshman Orientation and the Inventor of the Zipper as Dr. John Sturgis
Aired January 21, 2021
Dr. Sturgis breaks the news to Sheldon and Mary that he has a new job.
408. An Existential Crisis and a Bear That Makes Bubbles as Dr. John Sturgis
Aired February 18, 2021
Meemaw turns to John for help to get Sheldon out of his philosophy-induced funk.
412. A Box of Treasure and the Meemaw of Science as Dr. John Sturgis
Aired April 1, 2021
Meemaw phones John to tell her about her work on a science experiment.
413. The Geezer Bus and a New Model for Education as Dr. John Sturgis
Aired April 8, 2021
Meemaw phones John to tell him about her car accident.
416. A Second Prodigy and the Hottest Tips for Pouty Lips as Dr. John Sturgis
Aired April 29, 2021
Sheldon finds himself at odds with Paige (Mckenna Grace) once again when she considers enrolling at East Texas Tech. Also, Mary seeks June’s (Reba McEntire) advice when looking for a change.
417. A Black Hole as Dr. John Sturgis
Aired May 6, 2021
Dr. Sturgis loses his job at the supercollider after an ill-advised interview with the media.
501. One Bad Night and Chaos of Selfish Desires as Dr. John Sturgis
Aired October 7, 2021
Sheldon visits Dr. Sturgis at the grocery store to talk about his moral quandry.
503. Potential Energy and Hooch on a Park Bench as Dr. John Sturgis
Aired October 21, 2021
Sheldon wants to convince Dr. Sturgis to return the university.
505. Stuffed Animals and a Sweet Southern Syzygy as Dr. John Sturgis
Aired November 4, 2021
Sheldon wants to invite Dr. Sturgis to help when he and Dr. Linkletter get stuck.
506. Money Laundering and a Cascade of Hormones as Dr. John Sturgis
Aired November 11, 2021
Sheldon seeks John's opinion after Missy admitted she was embarrassed talking to her mother about procreation.
510. An Expensive Glitch and a Goof-Off Room as Dr. John Sturgis
Aired January 6, 2022
Sheldon turns to Dr. Sturgis for advice after Sam tells him that people avoid because he's arrogant and entitled.
514. A Free Scratcher and Feminine Wiles as Dr. John Sturgis
Aired February 24, 2022
Dr. Sturgis and Dr. Linkletter can not agree on how to proceed with their project.
515. A Lobster, an Armadillo and a Way Bigger Number as Dr. John Sturgis
Aired March 3, 2022
Sheldon joins Dr. Sturgis and Dr. Linkletter on a science road trip.
518. Babies, Lies and a Resplendent Cannoli as Dr. John Sturgis
Aired April 14, 2022
Sheldon invites Dr. Sturgis to join a book club celebrating Isaac Asimov's life.
603. Passion's Harvest and a Sheldocracy as Dr. John Sturgis
Aired October 13, 2022
Sheldon must choose sides in an ethical dilemma. Also, Mary tries her hand at writing and Mandy needs a new place to live.
604. Blonde Ambition and the Concept of Zero as Dr. John Sturgis
Aired October 20, 2022
Sheldon makes a terrifying mathematical discovery while tutoring Billy. Also, Mary is jealous of Missy's relationship with Mandy and MeeMaw.
609. College Dropouts and the Medford Miracle as Dr. John Sturgis
Aired January 5, 2023
Sheldon considers dropping out of college to focus on building his database. Also, George Sr. is frustrated when someone else gets credit for his football wins.
611. Ruthless, Toothless, and a Week of Bed Rest as Dr. John Sturgis
Aired February 2, 2023
Sheldon learns the university is building a database without him. Also, Mary takes care of a bedridden Mandy and Meemaw.
615. Teen Angst and a Smart-Boy Walk of Shame as Dr. John Sturgis
Aired March 9, 2023
Sheldon confronts the failure of his database. Also, Georgie and Mandy struggle as new parents and Missy feels forgotten.
618. Little Green Men and a Fella's Marriage Proposal as Dr. John Sturgis
Aired April 27, 2023
Sheldon wants to search for life on other planets and Mandy answers Georgie's marriage proposal. Also, Missy is caught between two friends.
619. A New Weather Girl and a Stay-at-Home Coddler as Dr. John Sturgis
Aired May 4, 2023
Mandy gets an exciting job opportunity and Sheldon worries that he's falling behind. Also, Georgie takes his daughter to work.