Screen Rant

  • Young Sheldon celebrated The Big Bang Theory's finale by featuring the young versions of the rest of sitcom's main cast 1 / 9

    Young Sheldon Vertical

  • Revealing what they were all doing separately while Sheldon's alone listening to the announcement of the 1990 Nobel Prize in Physics winners 2 / 9

  • Young Leonard is played by Isaac Harger also known for playing DJ's middle son in Fuller House 3 / 9

    Young Leonard Vertical

  • Young Penny is played by child actress/model Quinn Aune 4 / 9

    Young Penny Vertical

  • Young Raj is played by Rishabh Prabhat 5 / 9

    Young Raj Vertical

  • Young Howard is played by Ethan Reed Stern 6 / 9

    Young Howard Vertical

  • Young Bernadette is played by Aj Coggeshall 7 / 9

    Young Bernie Vertical

  • Young Amy is played by Lily Sanfelippo who also appeared in Confessions of a Bitter(sweet) Actress, Criminal Minds & Golden State. 8 / 9

    Young Amy Vertical

  • The casting was great, making fans interested in another potential young spin-off from The Big Bang Theory 9 / 9

    The cast of The Big Bang Theory