John Stamos made another crack about Mary-Kate and Ashley Olsen not filming Fuller House while emceeing a charity fundraiser Thursday night.
The Alliance for Children's Rights 24th Annual Dinner, held at The Beverly Hilton Hotel in Beverly Hills, honored Dana Walden and Gary Newman, the co-chairs and CEO of Fox Television Group – and Stamos' bosses for his sitcom Grandfathered.
While listing their philanthropic and humanitarian qualities, he added, "They help the elderly, and not just by giving me a TV show."
Then, Stamos, 52, made his good-humored jab at Full House's child stars turned fashion designers.
"My whole career is based on helping children. Ask the Olsen Twins, if you can find them and all their money," he joked. "If you do find them, tell them I got a second season of Fuller House."
VIDEO: The Real Reason the Olsen Twins Passed on Fuller House
On the red carpet earlier, Stamos – who is dating model and actress Caitlin McHugh – told PEOPLE about connecting with child actors like the Olsens and Grandfathered's baby girl.
"I'm a baby whisperer, I think," he said. " I just love kids. I don't have any of my own, so I just keep doing TV shows with them. I know it works. It's a good juxtaposition of a Jesse character or a Jimmy character, bachelor, a sweet kid. They always seem to soften what I'm doing in the shows."
Terry Crews, Seth McFarlane, Julie Bowen, Melissa Fumero, Ian Ziering and Ryan Murphy also attended the gala.