Jason Segel Bio
Jason Jordan Segel, born January 18, 1980, is an American actor, screenwriter, and producer. He is best known for his role as Marshall Eriksen in the CBS sitcom How I Met Your Mother, which aired from 2005 to 2014. Segel is also recognized for his work in comedy films including Forgetting Sarah Marshall, I Love You, Man, The Muppets, and The Five-Year Engagement, as well as the Apple TV+ series Shrinking.
Beyond acting, Segel has built a career as a writer and producer, co-creating Shrinking with Bill Lawrence and Brett Goldstein. He has also authored young adult novels, including the Nightmares! series and the Otherworld trilogy, expanding his creative footprint beyond film and television.
Early Life and Background
Jason Jordan Segel was born on January 18, 1980, in Santa Monica, California, to Jillian and Alvin Segel, a lawyer. He grew up in the Pacific Palisades neighborhood with an older brother, Adam, and a younger sister, Alison. His father is Jewish and his mother is of English, Scottish, Irish, and French descent, and he was raised Jewish while also experiencing a variety of cultural traditions.
Segel attended St. Matthew’s Parish School, a private Episcopal school, and later completed his high school studies at Harvard-Westlake School. At Harvard-Westlake, his 6 ft 4 in frame helped him become an active member of the 1996 and 1997 CIF state champion boys’ basketball team. He was nicknamed “Dr. Dunk” after winning a slam dunk contest and played alongside future NBA center Jason Collins.
Path to Acting
Segel began his career working with director and producer Judd Apatow on the NBC comedy-drama series Freaks and Geeks in 1999. The show, set in suburban Detroit in 1980, was critically acclaimed but short-lived, and Segel personally composed a song for his character Nick Andopolis to perform. The experience introduced him to Apatow, who became a key collaborator in his early development.
He continued working with Apatow on the Fox comedy series Undeclared from 2001 to 2002 and landed a recurring role on CSI: Crime Scene Investigation. His feature film debut came in 1998 with Can’t Hardly Wait, followed by smaller roles in Slackers, SLC Punk!, The Good Humor Man, and Dead Man on Campus. These early credits helped him transition from television guest spots to leading film roles.
Jason Segel Career
Early Career (1998–2004)
Jason Jordan Segel made his film debut in the 1998 teen comedy Can’t Hardly Wait while still building his television resume. His turn as stoner Nick Andopolis on Freaks and Geeks from 1999 to 2000 introduced him to audiences and industry collaborators, including Apatow. He followed that with a recurring role on Undeclared (2001–2002) and a guest arc on CSI: Crime Scene Investigation as Neil Jansen.
During this period, Segel also appeared in smaller features such as Slackers, SLC Punk!, and Dead Man on Campus. These roles allowed him to hone his comedic timing and on-screen presence, setting the foundation for his later leading-man work. By 2005, he had signed on to play Marshall Eriksen on How I Met Your Mother, a role that would define his career.
Breakthrough (2005–2014)
Segel gained widespread recognition as Marshall Eriksen on the CBS sitcom How I Met Your Mother, a role he played for nine seasons from 2005 to 2014. He had originally planned to leave after his contract expired, but was convinced to stay through the series finale. His portrayal of the lovable law student and his on-screen romance with Lily Aldrin made him a household name.
On the film side, Segel joined the cast of Judd Apatow’s Knocked Up in 2007 before writing and starring in the 2008 hit Forgetting Sarah Marshall, produced by Apatow and released by Universal Pictures. The film featured a puppet Dracula musical created by the Jim Henson Company, an experience that led Segel to pitch a Muppets film to Disney. He followed that success with I Love You, Man (2009), voiced Vector in Despicable Me (2010), starred in Gulliver’s Travels (2010), and co-wrote music for Get Him to the Greek (2010).
Segel then co-wrote and starred in Disney’s The Muppets (2011), appeared in Bad Teacher (2011), and filmed The Five-Year Engagement with Emily Blunt, released in April 2012. He rounded out this period with roles in This Is 40 (2012) and Sex Tape (2014), solidifying his reputation as a comedic leading man and writer-producer.
Notable Works and Milestones
His most recognized television role is Marshall Eriksen on How I Met Your Mother, while his most celebrated film work includes Forgetting Sarah Marshall, I Love You, Man, and The Muppets. The Dracula puppet musical sequence in Forgetting Sarah Marshall remains a signature moment, leading directly to his involvement in reviving the Muppets franchise. His performance in The Muppets also helped reintroduce the characters to a new generation of viewers.
Jason Segel Award Nominations
Jason Jordan Segel has earned recognition across his career for both comedic and dramatic work. His portrayal of author David Foster Wallace in the 2015 independent film The End of the Tour earned him an Independent Spirit Award nomination for Best Male Lead. For his role as therapist Jimmy Laird on the Apple TV+ series Shrinking, he received three Primetime Emmy Award nominations and a Golden Globe Award nomination.
Jason Segel Awards Won
Jason Jordan Segel has not been documented as having won a major individual acting award based on the verified sources available for this profile. His career recognition has come primarily through nominations, including those from the Independent Spirit Awards, Primetime Emmy Awards, and the Golden Globe Awards, reflecting consistent critical respect across comedy and drama.
Jason Segel Family
Jason Jordan Segel was raised in the Pacific Palisades neighborhood of Los Angeles by his parents, Jillian and Alvin Segel, a lawyer. He has an older brother named Adam and a younger sister named Alison. His mixed religious and cultural upbringing, including time at Hebrew school and a Bar Mitzvah ceremony as well as attendance at a private Episcopal school, shaped his early family life.
Personal Life
Jason Jordan Segel is an ordained minister with the Universal Life Church and once performed a wedding ceremony on The Tonight Show. He dated his Freaks and Geeks co-star Linda Cardellini for several years after the show’s cancellation, then dated actress Michelle Williams from 2012 to 2013. He was in a long-term relationship with photographer Alexis Mixter from December 2013 to April 2021.
Since 2023, Segel has been dating former Taylor Swift backup dancer Kayla Radomski, and in June 2025, Radomski announced their engagement via Instagram. Segel also authored a series of young adult novels, beginning with Nightmares! in 2014 and continuing with the Otherworld trilogy, reflecting his continued interest in writing beyond film and television.
