1: Meet Young Sheldon's new stars, ready to take over from TBBT's Leonard.

2: Fans of The Big Bang Theory, get ready for Young Sheldon's fresh faces.

3: Say hello to the next generation of nerdy brilliance on Young Sheldon.

4: Discover the perfect replacements for Leonard on Young Sheldon.

5: From physicists to prodigies, Young Sheldon's new characters shine bright.

6: Young Sheldon's cast changes bring a new dynamic to the beloved series.

7: Get to know the young talents stepping into Leonard's shoes on Young Sheldon.

8: Young Sheldon welcomes its new lead characters with open arms.

9: Young Sheldon's casting shake-up is sure to keep fans on the edge of their seats.