Guest Star :: Rex Linn
Rex Linn has guest starred in 24 episodes of Young Sheldon.
101. Pilot as Principal Petersen
Aired September 25, 2017
On his first day at the school, Sheldon's teachers are already complaining to Principal Petersen about their new student.
110. An Eagle Feather, a String Bean, and an Eskimo as Principal Petersen
Aired January 4, 2018
When Principal Petersen worries that his school's curriculum is no longer challenging Sheldon, he suggests Mary and George consider sending him to a gifted school in Dallas.
113. A Sneeze, Detention, and Sissy Spacek as Principal Petersen
Aired February 1, 2018
After Sheldon runs out of a class because his teacher sneezed, Principal Petersen calls George and Mary to his office to discuss the appropriate punishment.
116. Killer Asteroids, Oklahoma, and a Frizzy Hair Machine as Principal Petersen
Aired March 29, 2018
Sheldon is sent to Principal Petersen's office after deliberately acting out after he didn't win the school science fair.
216. A Loaf of Bread and a Grand Old Flag as Principal Petersen
Aired February 21, 2019
After Sheldon seems to back communism on the local news, Principal Petersen warns George that he could lose his job.
217. Albert Einstein and the Story of Another Mary as Principal Petersen
Aired March 7, 2019
After finding out that Mary is expecting, George asks Principal Petersen for a raise.
218. A Perfect Score and a Bunsen Burner Marshmallow as Principal Petersen
Aired April 4, 2019
After Principal Petersen calls Sheldon and George to his office, he tells them Sheldon got a perfect score on his PSAT.
219. A Political Campaign and a Candy Land Cheater as Principal Petersen
Aired April 25, 2019
Sheldon goes to see Principal Petersen with a letter of complaint about the underfunded science department.
308. The Sin of Greed and a Chimichanga from Chi-Chi's as Principal Petersen
Aired November 21, 2019
Fearful of losing his most valuable student, Principal Petersen pulls out all the stops to keep George and Sheldon at the school.
310. Teenager Soup and a Little Ball of Fib as Principal Petersen
Aired December 12, 2019
Sheldon pleads with Principal Petersen to let him out of swim practice.
319. A House for Sale and Serious Woman Stuff as Principal Petersen
Aired April 2, 2020
Sheldon approaches Principal Petersen to see if he would be interested in buying the house next door.
321. A Secret Letter and a Lowly Disc of Processed Meat as Principal Petersen
Aired April 30, 2020
Principal Petersen appears on Sheldon's video to show support for him going to college.
401. Graduation as Principal Petersen
Aired November 5, 2020
Principal Petersen is thrilled to tell Sheldon and his parents that Sheldon has the credits to graduate early.
408. An Existential Crisis and a Bear That Makes Bubbles as Principal Petersen
Aired February 18, 2021
George is called to Principal Petersen's office after Georgie starts cutting class.
415. A Virus, Heartbreak and a World of Possibilities as Principal Petersen
Aired April 22, 2021
Sheldon is caught in a moral dilemma when offered a bootleg copy of a computer game he can't afford. Also, Mary and Meemaw take Brenda out for girls' night while George Sr. and the guys watch Billy, and Missy asks Georgie to take her and Marcus on a secret date.
503. Potential Energy and Hooch on a Park Bench as Principal Petersen
Aired October 21, 2021
Principal Petersen calls Georgie to his office after he skips school.
509. The Yips and an Oddly Hypnotic Bohemian as Principal Petersen
Aired December 9, 2021
When George joins Principal Petersen for an after-work drink, they discuss Petersen's bachelor lifestyle.
511. A Lock-In, a Weather Girl and a Disgusting Habit as Principal Petersen
Aired January 13, 2022
George, who is home alone for the night, invites Principal Petersen out for a beer.
513. A Lot of Band-Aids and the Cooper Surrender as Principal Petersen
Aired January 27, 2022
Principal Petersen warns George his job is at risk with parents unhappy with the football team's performance.
514. A Free Scratcher and Feminine Wiles as Principal Petersen
Aired February 24, 2022
George meets Principal Petersen at a bar to discuss his problem with Mary refusing to spend the scratchcard money.
521. White Trash, Holy Rollers and Punching People as Principal Petersen
Aired May 12, 2022
George isn't in the mood for Coach Wilkins and Principal Petersen's jokes about his family situation as he joins them for a drink.
522. A Clogged Pore, a Little Spanish and the Future as Principal Petersen
Aired May 19, 2022
George confronts Principal Petersen after hearing Coach Wilkins was offered his job as head coach.
606. An Ugly Car, an Affair and Some Kickass Football as Principal Petersen
Aired November 3, 2022
George Sr. is asked to help with the football team. Also, Mandy discovers Georgie and Meemaw's secret business.
609. College Dropouts and the Medford Miracle as Principal Petersen
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.