Actors/Actresses:
* Scarlett Johansson
* Sandra Bullock
* Saoirse Ronan
* Samuel L. Jackson
* Sean Penn
* Sigourney Weaver
* Sylvester Stallone
* Steve Carell
* Selena Gomez
* Sophia Loren
* Salma Hayek
* Sarah Jessica Parker
* Sacha Baron Cohen
* Stanley Tucci
* Susan Sarandon
* Stephen Fry
Musicians:
* Stevie Wonder
* Selena Quintanilla
* Shakira
* Sting
* Sia
* Snoop Dogg
* Sam Smith
* SZA
* Solange Knowles
* Shawn Mendes
* Stevie Nicks
Other:
* Stephen King (author)
* Stephen Colbert (comedian)
* Serena Williams (athlete)
* Steve Jobs (entrepreneur)
* Simon Cowell (producer)
* Stephen Hawking (scientist)
* Sarah Palin (politician)
* Shonda Rhimes (producer)
This is just a small sample, of course. There are many more celebrities whose names start with the letter S!