And, in a classic bit of casting, Dustin Hoffman got the role of Benjamin Braddock in "The Graduate." In Charles Webb's novel, Braddock is an athletic, upper-class WASP -- someone who looks like Redford, who was actually considered for the role -- but Stalmaster and director Mike Nichols were looking for someone who could project the character's insecurity.
In a "Casting By" clip, Hoffman remembers his uncertainty.
"I said to Nichols, I did not think I was right for the role. (Braddock is) kind of Anglo-Saxon, tall, slender, good-looking," Hoffman recalled. "And he said, 'You're Jewish.' I said, 'That's right -- short and Jewish.' He said, 'Well, inside, Benjamin Braddock is short and Jewish.' "
Despite their key role in shaping movies, casting directors still don't get all the credit they deserve. That was literal in the beginning: Stalmaster was the first casting director to get "single-card credit" (in which the person is the only credit listed on the screen), for 1968's "The Thomas Crown Affair."
Even today, there's still some resistance. Despite attempts to get the position recognized for Oscar consideration, the motion picture academy has yet to do so. (Moreover, when colleagues pushed Dougherty for honorary Oscar recognition, that attempt, too, failed.)
Nevertheless, the actors have remembered. One of the pleasures of "Casting By" is watching performers who have long since gone on to fame and fortune become their younger selves -- telling stories about being hard-up for rent, scrapping for food, wondering about their next job, and then being blessed by a casting director's wand.
Ross, who's been in casting for more than 30 years, says the idea of making and breaking careers doesn't enter her mind, however. She simply believes in what she does.
"I love talent," she says. "The business has changed so much, but at the very core of it, my love of talent and helping them get the opportunity to work has not changed."
Dougherty, who died in 2011, felt the same way -- and the feeling was reciprocal: "Casting By" ends with a chorus of tributes from colleagues.
She may not have been well-known, but Voight pays her a great compliment -- one due to so many casting directors.
"She could see what people couldn't see," he says.