Duhamel was born in Minot, North Dakota. His mother, Bonnie L. Kemper, is a massage therapist, and his father, Larry Duhamel, is an advertising salesman. He is of French-Canadian, Irish, English, German, and Norwegian ancestry. Duhamel was raised Catholic. His parents divorced during his youth. Although he remains close to both, he grew up with his mother and his three younger sisters, Ashlee, Mckenzee, and Kassidy. Duhamel attended Minot State University and played as the back-up quarterback for the university's football team. He planned to attend dental school, but dropped out one-and-a-half credits shy of his undergraduate degree.
Duhamel has stated, "After college, I followed an ex-girlfriend to northern California, did a bunch of odd jobs." Duhamel had won the title of Male Model of the Year in an International Modeling and Talent Association (IMTA) competition in 1997 (the runner-up was actor Ashton Kutcher). Duhamel began his acting career as an extra in the music videos for Donna Summer's song, "I Will Go With You (Con te partirò)" in 1999 and Christina Aguilera's song, "Genie in A Bottle" also in 1999. Josh trained with Scott Sedita Acting Studios. Later that year, he won the role of Leo du Pres on the ABC soap opera All My Children. His work on the show, especially his character's pairing with Greenlee Smythe (portrayed by actor Rebecca Budig), garnered critical acclaim. In 2000, he posed fully nude for Greg Gorman's "As I See It" photography book.
In 2003, he earned a Daytime Emmy Award nomination for the Special Fan Award for America's Favorite Couple in 2002, shared with Budig, and a Daytime Emmy Award for Outstanding Supporting Actor for his portrayal of Leo du Pres. Duhamel left All My Children in 2002 to pursue other acting opportunities. In 2003, Duhamel landed a prime time role on the NBC show Las Vegas, playing the head of security as Danny McCoy for the Montecito Casino. He succeeded James Caan as head of the casino after Caan departed the series at the end of the fourth season. The series ended in 2008. Duhamel made his big-screen acting debut in 2004's Win a Date with Tad Hamilton! and continued on to star in the thriller Turistas (2006). After watching an episode of Las Vegas in which Duhamel's character had just returned from the war in Iraq, Steven Spielberg handpicked him for the role of Captain William Lennox in 2007's summer blockbuster film Transformers (a film for which Spielberg was the executive producer). Duhamel reprised the role for the sequel, Transformers: Revenge of the Fallen, released in June 2009, and again in Transformers: Dark of the Moon, released in June 20. Duhamel was the official pace car driver for the 2009 Indianapolis 500 driving the 2010 Chevrolet Camaro Pace Car. In 2010, he played the lead role in the film When in Rome as Nick Beamon. On March 23, 2013, Duhamel hosted the 2013 Kids' Choice Awards, which was broadcast live from Los Angeles, California. He and his co-star from Safe Haven, Julianne Hough, performed a Safe Haven-themed showcase appearance via video on The Price is Right with Drew Carey.
Duhamel met and began dating singer Stacy Ann "Fergie" Ferguson in September 2004, after Ferguson appeared on Duhamel's show Las Vegas with her band The Black Eyed Peas. The couple wed in 2009, in a Roman Catholic ceremony at the Church Estate Vineyards in Malibu, California. They have one son, Axl Jack Duhamel, born on August 29, 2013.
|JOSH DUHAMEL AND TOPHER GRACE|
In this scene from "Win a date with Tad Hamilton" Josh Duhamel one-ups Topher Grace as they both try to impress the love interest. But don't worry, they do not really hate each other. They are acting!