I don’t think I have a favourite scientist, so many of them have done amazing things! I quite like Tycho Brahe, not because of the science he did (which is also pretty cool), but because he had an amazing life story. He had his nose chopped off in a sword fight and wore a wooden replacement nose!
That’s a really tricky question. As Declan mentioned, there are so many really great and important scientists out there. The scientist who probably inspired me the most growing up though was Carl Sagan. He was fantastic at explaining really difficult concepts to everybody.