Jake Gyllenhaal Dennis Quaid as his father. In his theatrical debut, Gyllenhaal starred on the London stage in Kenneth Lonergan's revival of "This Is Our Youth" at the Garrick Theatre in 2002. Gyllenhaal said, "Every actor I look up to has done theatre work, so I knew I had to give it a try." The play, which had been a critical sensation on Broadway, ran for eight weeks in London's West End. Gyllenhaal received favorable critical reviews and an Evening Standard Theatre Award in the category "Outstanding Newcomer". In 2005, Gyllenhaal starred in the critically praised films "Proof", "Jarhead", and "Brokeback Mountain".
Leonard Gyllenhaal a leading Swedenborgian who supported the printing and spreading of Swedenborg's writings. His grandson, the Swedish-American journalist Anders Leonard Gyllenhaal, retained the faith of his grandfather and was a member of the Swedenborgian New Church. His descendants in the American branch of the family include the actor siblings Jake and Maggie Gyllenhaal. Leonard Gyllenhaal Leonard Gyllenhaal (3 December 1752 – 13 May 1840) was a Swedish military officer and entomologist. Born on the Ribbingsberg manor in Västergötland in west Sweden, Leonard Gyllenhaal was son of an army officer and belonged to a family of the lower nobility. He went to