He played a popular supporting role 500 Days of Summer. His other films include Super Troopers, Bubble Boy, and Killing Zelda Sparks.
He started his career as a voice actor for video games.
He acted in Truth in Advertising, a 2008 TNT television drama series.
He married Christina Hendricks in 2009.
Joseph Gordon-Levitt and Arend played characters who worked in the same office in the movie 500 Days of Summer.