Young Sheldon Sure Loves to Repeat Its Wildest Big Bang Theory Inconsistency

CBS' The Big Bang Theory was one of the most popular sitcoms of its era, so it was a pretty obvious idea that the producers decided to cement the series' success by creating a spin-off centered around Sheldon Cooper during his formative years.

However, no one in the fandom was prepared for how great Young Sheldon turned out to be, as the show felt much more real and down-to-earth than the original ever had, eliciting deep emotion from the audience.

In order to achieve this, the writers were forced to break or bend the canon of the original show on more than one occasion. And while most of the changes were approved by fans, some of the inconsistencies still puzzle them to this day.

Strange casting choices

Considering that TBBT lasted 12 long years, it's only natural that dozens of actors worked on the show during its run, and most of them were quite talented. However, some fans were a bit surprised when CBS started inviting some of the original cast members to star in Young Sheldon. Seeing the same people playing two different roles in the connected series created a huge inconsistency, the fans say.

Big Bang Theory Got Most Of Its Science Right, But Failed Howard Big TimeThe most infamous example of this is undoubtedly the casting of Lance Barber as Sheldon's father, George Sr., since the actor had already played a major role in the original show. He starred in one of TBBT episodes as Jimmy Speckerman, a bully who tormented Leonard throughout his childhood.

That's why seeing him play a completely different character in the spin-off was a little strange, but Barber's great acting skills made viewers overlook the odd casting choice.

The inconsistencies didn't stop there

While Barber is the most prominent example of Young Sheldon's inconsistent casting, it's far from the only one. For instance, Leonard's romantic interest Mandy Chow was portrayed by Melissa Tang, who also played Sheldon's music teacher Ms. Fenley in the very first episode of the prequel.

Also, the iconic Penn, of Penn and Teller fame, spent a lot of time playing Amy's silent father in the original show, so it was a bit odd for fans to see him appearing as the pus in Sheldon's pimple alongside Teller as the pimple itself.