look up any word, like bukkake:
 
1.
a B-actor is an actor hired to act in B-movies. B-actors are generally less well-known but not necessarily less talented than top actors. Many famous movie stars began their careers as B-movie actors, such as John Wayne. Others, such as Bruce Campbell, who incorporated the term into the title of his auto-biography, have embraced it
-i just love kevin costner

-how can you possible love that B-actor?!
by resume October 20, 2005
 
2.
Background actor, extra.
In a typical movie battle scene, there are 100's of bactors used to create the atmosphere of the action.
by naopowpow September 16, 2014