To capitalize on the popularity ofThe Big Bang Theory, the sitcom’s first spin-off premiered in 2017.

The events ofYoung Sheldontake place around two decades before the beginning ofThe Big Bang Theory.

He takes over the role from Jim Parsons who played its older version inThe Big Bang Theory.

young-sheldon

Things have really changed for Sheldon as the series wore on.

Despite his young age, Armitage has already appeared in a few other projects outside ofYoung Sheldon.

He first gained prominence through his YouTube series,Iain Loves Theatrewhere he reviewed stage shows.

The Young Sheldon cast

Meanwhile, Parsons provides the adult narration inYoung Sheldon.

She has been active in the entertainment industry since 1992.

He’s a devoted family man who works tirelessly for his family.

Blended image of Sheldon Cooper (Iain Armitage), Mary Cooper (Zoe Perry), and Mandy (Emily Osment) in Young Sheldon season 6

A spinoff of the sitcom The Big Bang Theory, Young Sheldon follows the youth and coming-of-age of Sheldon Cooper during his childhood in Texas as he pursues science and academia. The show also follows his parents, siblings, and Mee-Maw, painting a picture of the world where Sheldon grew up.

However, George’s cheating storyline never formed onYoung Sheldon,and he died in the final season.

His breakthrough came with the TV showThe Comebackon HBO in 2005.

He is also known for appearing in many shows throughout the years.

Mary Coper looking angry at bowling alley in Young Sheldon

He was inIt’s Always Sunny in Philadelphia,The Comeback,Black-ish,Brooklyn Nine-Nine, andGilmore Girls.

Interestingly, healso played Leonard’s bully, Jimmy Speckerman, inThe Big Bang Theory.

The spin-off reveals more of him before becoming the successful business owner of Mr. Tire dealership in Texas.

George Sr. sitting at the table and smiling in Young Sheldon

While not academically gifted like Sheldon, Georgie has great entrepreneurial skills.

That movie actually came out after his character first appeared in theYoung Sheldoncast.

He alsoreprised his role as young Georgie in the one-time crossover episode betweenThe Big Bang Theoryand its offshoot.

Jim Parsons’s pleased Sheldon displays a model train to Melissa Rauch’s intrigued Bernadette in The Big Bang Theory

This has been the only film and TV work so far in his career.

However, she alsohad minor appearances in shows likeModern Family,Wish Upon, andAlexa & Katie.

Named Connie Tucker,Young Sheldon’s version of the character is significantly different fromThe Big Bang Theory’s.

Missy smiling in her kitchen in Young Sheldon

Annie Potts was born in Tennessee and has more than 40 years of experience in movies and TV shows.

Potts also voiced Bo Peep in theToy Storyfranchise.

In 2005, Osment got herbreakout role when she played Lilly Truscott inHanna Montana.

Young Sheldon’s Missy with TBBT’s Howard, Penny, and Leonard

She also voiced Pep in theBeverly Hills Chihuahuafranchise.

The seasoned teacher was the first person to introduce the socially inept genius to theoretical physics.

He also dated Meemaw for a while.

Meemaw and Sheldon hugging on her couch on Young Sheldon.

He’s also the arch-rival of Dr. Linkletter at East Texas Tech.

He’s appeared inSt.

Elsewhere,Blue Collar,An Officer and a Gentleman,Batman Forever,Pineapple Express, andCHiPS.

Mandy and Georgie looking at each other in Young Sheldon season 6

Matt Hobby as Pastor Jeff- Mary works directly with Matt Hobby’s Pastor Jeff at church.

He often spends a lot of time challenging Sheldon’s beliefs through logic exercises.

He was also inBoardwalk Empire,Hart of Dixie, andThe Grinder.

Young Sheldon

He has an unrequited love for Missy.

The child actor is best known in his roles inI See YouandPsychos.

Melissa Peterman as Brenda Sparks- Billy’s mom, Brenda Sparks, is portrayed by Melissa Peterman.

She could also beGeorge’s first mistress mentioned inThe Big Bang Theoryafter she separated from her husband.

Peterman has appeared inRebaand was the host ofBet On Your BabyandThe Singing Bee.

Billy Gardell as Herschel Sparks- The Sparks patriarch, Herschel Sparks, is played by Billy Gardell.

Like George, he’s often nagged by his wife, until Herschel decided to split from her.

The actor is best known for his role inMike and Molly, as well as,Bob Hearts Abishola.

Ryan Phuong as Tam Nguyen- Ryan Phuong portrays Sheldon’s first best friend, Tam Nguyen.

However, they eventually patched things up after Tam visits Sheldon in CalTech where the pair reconnected.

Phuong had roles inShamelessand TheTundermans.

McKenna Grace as Paige Swanson- Sheldon was introduced to another child prodigy named Paige.

Portrayed by McKenna Grace, the pair mostly has a contentious relationship, but they bond over shared experiences.

At one point, Sheldon even develops a crush on Paige.

She also recently appeared inTed LassoandCruel Summer.

Doc Farrow as Assistant Coach Wilkins- Originally Sheldon’s P.E.

He’s been inThe Good Place,Curb Your Enthusiasm, and the movie,Bombshell.

She also starred in movies includingSenior Trip,Jungle 2 Jungle,Sully, andFrench Exit.

Jason Alexander as Mr. Gene Lundy- Jason Alexander’s Gene Lundy is Medford High School’s resident drama teacher.

Rex Linn as Tom Petersen- Medford High’s Principal, Tom Petersen, is portrayed by Rex Linn.

She’s appeared inMinority Report,The Stepfather,Criminal Minds, andGrimm.

Chris Wylde as Glenn- Chris Wylde portrays the owner of the comic book store King Kong Comics, Glen.

The actor is known for appearing inGeneral Hospital,The DUFF,Space Cowboys, andThe Revenant.

She starred in the concluded Netflix show,Alexa & Katie.

She was inPretty Little Liars,Modern Family, andSuits.

Dan Byrd As Pastor Rob- Dan Byrd’s Youth Pastor Rob teaches the kids during Sunday school.

The actor is best known for his roles inA Cinderella Story,Easy A,andCougar Town.

Rachel Bay Jones as Audrey McAllister- Rachel Bay Jones plays Audrey McAllister in theYoung Sheldoncast.

She is Mandy’s mother and the grandmother to Georgie’s child.

Sasso is a comedy actor who got his big break on the sketch comedy showMad TV.

He also had roles inLess Than Perfect,How I Met Your MotherandUnited We Fall.

Which Characters Are Returning For Georgie & Mandy’s First Marriage?