Egg “agents” are aggressively recruiting city models and actresses, whose looks are coveted by couples turning to in-vitro fertilization.

Robyn Young, who has appeared in shows such as “Boardwalk Empire,” at first rejected the ads on casting sites such as Backstage.com. But the money proved too much to resist — she made between $8,000 and $10,000 for her first donation, in 2009…

Agents do a full background check that includes academic marks, blood test for diseases, as well as a psych exam. Young says that despite her good high-school GPA, she could have made up to $20,000 with a better SAT score.

“Some of these couples are very rich businessmen,” she said. “They want to make sure it’s someone with a good head on their shoulders.”