PUBLISHED: 10:14, Tue, Jun 2, 2020 | UPDATED: 10:28, Tue, Jun 2, 2020
Big Bang Theory is still a popular comedy series which is available to watch on CBS and E4, and it follows the story of Sheldon Cooper (played by Jim Parsons) and his friends. Most of the friends work in the field of science and there have been some major cameos from big names in the field throughout the series. Fans have spotted Elon Musk getting into the Thanksgiving spirit on Big Bang Theory, and he later featured in the prequel series, Young Sheldon.
Elon Musk is a famous industrial designer and engineer who is known for being the founder of SpaceX and the CEO of car manufacturer Tesla.
He founded SpaceX in 2002, a space transport services company, and later joined Tesla in 2004 as a product architect.
Due to his connections in the field of science, there is no doubt creators of Big Bang Theory and Young Sheldon were quick to snap him up for a cameo.
In Big Bang Theory Elon Musk features in the episode titled The Platonic Permutation, which is the ninth episode of the ninth season.
In the episode, Howard Wolowitz (Simon Helberg) meets his biggest hero Musk while the pair are serving a Thanksgiving dinner to the homeless.
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Big Bang Theory: Elon Musk starred in Big Bang and Young Sheldon (Image: Getty/Channel 4)
Big Bang Theory: Elon Musk was volunteering in a kitchen (Image: CBS)
Howard looks up to see Musk standing next to him at the sink and he says: "You have got to be kidding me, you're Elon Musk."
He is then left in a state of shock when Musk tells him he has been put on washing up duty, having been demoted from the turkey line for being "overly generous with the gravy".
Howard says it is an honour to meet him and he is such a fan of Tesla and SpaceX, and Musk explains how great it feels to come and help the less fortunate.
Musk asks if Howard would ever go back to space and he says he is always looking for engineers, saying he would stay in touch with Howard.
The pair then share a partially eaten piece of pumpkin pie which has been left behind on one of the dirty plates.
Big Bang Theory: Howard was starstruck when he met Elon Musk (Image: CBS)
Young Sheldon: Elon Musk reads Sheldon Cooper's science book (Image: CBS)
Musk has also been mentioned in passing by Sheldon