John Krasinski is an American actor, director, and screenwriter best known for his role as Jim Halpert on the NBC sitcom The Office. Born John Burke Krasinski on October 20, 1979, in Newton, Massachusetts, USA, he is the youngest of three brothers. His mother, Mary Claire (Doyle), is a nurse, and his father, Ronald Krasinski, is an internist.

John Krasinski’s father is of Polish descent, making him of partial Polish ancestry. His father was born in Poland and immigrated to the United States in the late 1950s. His mother is of Irish ancestry.

John Krasinski has appeared in numerous films and television shows, including the romantic comedy License to Wed, the drama Leatherheads, and the horror film A Quiet Place. He also directed and starred in the 2018 horror film A Quiet Place Part II.

John Krasinski has also had a successful career as a screenwriter. He wrote and directed the 2009 romantic comedy Brief Interviews with Hideous Men, and he wrote and starred in the 2013 drama Promised Land.

John Krasinski is a proud Polish-American. He has spoken fondly of his Polish heritage, saying, “My dad is Polish, and I’m very proud of that.” He has also visited Poland several times, including in 2011 when he attended the Polish premiere of his film Something Borrowed.

In conclusion, John Krasinski is of partial Polish ancestry. His father was born in Poland and immigrated to the United States in the late 1950s. He is proud of his Polish heritage and has visited Poland several times.