03/12/2007 at 09:00 AM EDT
Michal Urie, who plays conniving assistant Marc St. James on ABC's Ugly Betty,
thinks the show's executive producer, Salma Hayek, will be a natural when it comes to motherhood.
"She's a great boss so I think she'll be a great mom," Urie, 26, told PEOPLE Sunday at the John Varvatos 5th Annual Stuart House benefit in West Hollywood.
"She knows how to take care – like we have a ton of producers, and
she's really caring. She's like the matriarch of the producers. She's already motherly."
A rep for Hayek, 40, announced Friday that the actress and her businessman boyfriend, François-Henri Pinault, 44, are engaged and expecting their first child
Urie said Hayek didn't tell the cast about her pregnancy before going public: "We found out same as everyone else." Calling the news "totally exciting," he joked, "It's not mine. I know, I was disappointed."