A:
* Benedict Cumberbatch
* Ben Affleck
* Bill Murray
* Brie Larson
* Bradley Cooper
* Bryan Cranston
* Bruce Willis
* Betty White
* Bob Odenkirk
* Bette Midler
* Blake Lively
* Benedict Wong
B:
* Barbara Streisand
* Ben Stiller
* Billy Crystal
* Beyoncé
This is just a small sample. There are many other actors whose first name starts with B, including:
* B.D. Wong
* Bob Hoskins
* Boris Karloff
* Brenda Blethyn
* Brittany Murphy
Do you want to narrow down your search by genre, era, or nationality? Let me know and I can help you find more actors whose first name starts with B!