Geoffrey Arend (born February 28, 1978) is an American film, television, voice and theater actor. He is best known for his role as Ethan Gross on the ABC drama series Body of Proof and Matt Mahoney on the CBS political drama series Madam Secretary.
Arend was born in the Manhattan borough of New York City. His father is American and of German and English descent, whereas his mother is Pakistani. He graduated from New York City's Fiorello H. LaGuardia High School of Music & Art and Performing Arts in 1996.
In 1998, Arend joined the cast of Daria as the voice artist for obnoxious flirt Charles "Upchuck" Ruttheimer III. He would voice Upchuck until the end of the series in 2002, as well as in the video game Daria's Inferno. After the show finished, Arend landed small roles in films such as Super Troopers , where he played a stoner who eats an entire bag of mushrooms to avoid getting caught by the cops after his friend gets pulled over, and Bubble Boy. He played a man with an intellectual disability in the film The Ringer, and then had a supporting role in the romantic comedy (500) Days of Summer.