We typically only imagine two types of actors: The Johnny Depps with unbelievable fame and wealth beyond imagination, or the starving, struggling unknown whose primary source of income is Starbucks.
The latter always efforts to become the former, but it is not the desire for the trappings that leads to success in any endeavor. It is the passion for your craft.
Actors - the good ones - simply love storytelling. More than just sharing a tale, they become one of its characters, creating the bond that connects the audience with the story. To bring a character to life is not unlike a magician performing an illusion, making something that is not, appear to be so. That's what I endeavor to do when I step into the booth at Drunk Octopus Studios every day: connect the audience with the story; make the character believable.
For a lot of us who simply love the craft, we may not see those Pirates of The Caribbean-like paychecks, but it does keep us from needing to learn to make a venti, half-whole milk, half 1%, extra hot, split quad, no foam latte, with whip, a touch of vanilla, and 3 short sprinkles of cinnamon.