He played Palek on the HBO drama Tell Me You Love Me (2007).
I found it so lovely and moving," Scott says of Westfeldt, who has been dating Hamm for more than a decade but is not married.
Even though he has done plenty of memorable work (including roles in ), Scott says working with such a star-studded cast was intimidating for him at times.
He starred in the film Passenger Side, released on DVD on October 26, 2010.
On television, he appeared as Griff Hawkins in the series Boy Meets World and Josh on Party of Five, as well as David's love interest, Ben Cooper, on Six Feet Under.
From 2009 to 2010 he appeared on the Starz network show Party Down.
His role in Party Down earned him an Entertainment Weekly Ewwy nomination for Best Actor in a Comedy Series in 2009.
In an appearance on G4's Attack of the Show program on April 21, 2011, he confirmed that this was due to his and Hamm's friendship with producer Shauna Robertson, who put their names in the credits as an Easter egg.
He played Ted Hendricks, Walter Mitty's detestable corporate boss, in the 2013 remake of The Secret Life of Walter Mitty.
Scott appeared in the films Our Idiot Brother (2011) as Jeremy and Bachelorette.