The 52-year-old actor, who played Mary-Kate and Ashley Olsen's Uncle Jesse in the series, sent a sweet Instagram message to the newlywed, along with a throwback pic of himself hugging the twins when they were just kids.
"In the blink of an eye," he wrote. "Congrats MK."
Stamos' post came not long after both Bog Saget and Dave Coulier, who portrayed Danny Tanner and Uncle Joey on Full House, revealed that they were not invited to Mary-Kate's wedding. "I'd like to congratulate Mary-Kate and wish her and her husband all the happiness in the world," Coulier, 56, said in a statement to ET. "Sending my love."
Saget, 59, also sent his well-wishes to Mary-Kate, 29. "I'm very happy," he said of the newlyweds on Monday's Today show. "I did send a mazel tov text."
The Olsen twins played the role of Michelle Tanner on the family sitcom from 1987 to 1995, but as of now, the two will not be joining the rest of the cast for the Netflix reboot, Fuller House.
On Friday evening, Mary-Kate and her French banker beau, 46, said their "I dos" in front of family and friends in an intimate event in New York, according to Page Six.
The website reports that the wedding was followed by an outdoor cocktail party at a private residence and decor that included "bowls and bowls filled with cigarettes."