Colin is well known for his roles in films such as King Kong, Orange County, and The House Bunny. His television roles include Alex Whitman in Roswell, Henry Jones in Band of Brothers, Greg Short in Life in Pieces, and Travis Marshall in Dexter. He also voices the titular character in the Talking Tom and Friends animated series.
- His last name at birth was Dillingham, his mother's name, but he changed it to Hanks after his parents married.
- He was considered for the role of Anakin Skywalker in Star Wars: Attack of the Clones along with Paul Walker, Ryan Phillippe, Christian Bale, Heath Ledger, James Van Der Beek, Joshua Jackson, Eric Christian Olsen, Erik von Detten, Chris Klein, Leonardo DiCaprio, and Jonathan Brandis.