Matthew Brandon RossΒ (born January 3, 1970) is an American actor and filmmaker. He is known for his roles as Alby Grant on the television seriesΒ Big LoveΒ (2006β11) and Gavin Belson onΒ Silicon ValleyΒ (2014β19), as well as his performances in the filmsΒ The Last Days of DiscoΒ (1998),Β American PsychoΒ (2000), andΒ The AviatorΒ (2004). He wrote and directed the 2016 comedy-drama filmΒ Captain Fantastic. Description above from the Wikipedia article Matt Ross (actor), licensed under CC-BY-SA, full list of contributors on Wikipedia.