Top 5 Young Sheldon characters that didn't appear on The Big Bang Theory

Young Sheldon depicts the early life of our beloved genius Sheldon Cooper from The Big Bang Theory. Played by Iain Armitage, in this series, we are properly introduced to Sheldon’s family and his early life in Texas.

Several characters appear in both shows; however, some important characters missed out on appearing in The Big Bang Theory even after a compelling storyline in the spin-off series.

Although many characters didn’t appear in The Big Bang Theory, we still have tried to list the top 5 characters from Young Sheldon that gave it a miss on appearing in TBBT.

Disclaimer: This article is based on the writer's opinion. Reader discretion is advised.

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5) Billy Sparks (Wyatt McClure)

Billy Sparks was an important character in Sheldon’s life in Young Sheldon. Billy is introduced as the Cooper’s neighbor who also develops a crush on Sheldon’s twin sister, Missy. He also tries to scare Sheldon with his chicken, Matilda. But later, they became somewhat like friends as Sheldon taught him Maths, due to which he was able to pass sixth grade.

However, he is still mentioned as a bully by Sheldon, who is on his enemy list in The Big Bang Theory but never appears in it.

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4) Grant Linkletter (Ed Begley Jr.)

Dr. Grant Linkletter was first introduced in Season 2. Just like Dr. Sturgis, Linletter also played an important role in Sheldon’s early life but was a little cold, aloof but an unintentionally funny character. Although his interest in Sheldon stemmed initially from his likeness to Meemaw but he still helped Sheldon on many occasions.

For instance, when Sheldon called from Germany and complained about dealing with people who are smarter than him, he advised him to just listen and not talk, which confused Sheldon but was important advise. Linkletter also attended George Sr.’s funeral and also gifted Sheldon an IBM Thinkpad Laptop with Dr. Sturgis as a graduation gift.

Despite being someone important in his childhood, Linletter does not appear in The Big Bang Theory.

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3) Amanda McAllister (Emily Osment)

Another important character related to the Cooper family is Amanda “Mandy” McAllistor. She was first introduced in Season 5. The 29-year-old married Sheldon’s older brother Georgie and also has a daughter with him. She is close to Missy and Meemaw and is cared for by all the other Coopers.

However, she never appears in The Big Bang Theory.

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2) Sam (Taylor Spreitler)

Sam was a student at East Texas Tech and was assigned with Sheldon on a group assignment by Dr. John Sturgis.

After being invited by Mary to their house, she gets frustrated and shares with Mary how there are only a few women in the scientific field and that the ones who are there are not taken seriously. She also points out how women like Mary, who provide for all the needs of others, harm the image of women further as then people like Sheldon begin looking down on women.

Mary tells her that she understands Sam’s need to be appreciated as she wants that too and that Sheldon does not look down particularly on women but everyone.

Despite being a strong character who could have become a part of The Big Bang Theory, Sam never appears in the show.

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1) Paige Swanson (McKenna Grace)

One of the beloved characters from Young Sheldon, Paige Swanson, was introduced in Season 2. She was a genius, just like Sheldon, who became his rival when they met. However, their relationship improved in later episodes.

She becomes good friends with Missy and after her change in attitude due to her parents’ divorce, Sheldon even listens to her lamenting about it and makes her a cup of tea to make her feel better.

Although a fan-favorite character on Young Sheldon, Paige does not appear in TBBT.

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