(October 4, 1942 - December 31, 1955) (divorced) (3 children)
In October 1942, Peck married Finnish-born Greta Kukkonen (1911–2008), with whom he had three sons, Jonathan (1944–1975), Stephen (b. 1946), and Carey Paul (b. 1949). They were divorced on December 31, 1955.
During his marriage with Greta, Peck had a brief affair with Spellbound co-star Ingrid Bergman. He confessed the affair to Brad Darrach of People in a 1987 interview, saying "All I can say is that I had a real love for her (Bergman), and I think that's where I ought to stop... I was young. She was young. We were involved for weeks in close and intense work."
On New Year's Day in 1956, the day after his divorce was finalized.