| Billy Martin | |
| Birth Name: | William Dean Martin |
| Birth Date: | 15 June 1981 |
| Birth Place: | Annapolis, Maryland, U.S. |
| Occupation: | Musician |
| Years Active: | 1992–present |
| Label: | Epic, Daylight, A Remarkable Idea |
| Associated Acts: | Overflow, Good Charlotte |
William Dean "Billy" Martin is an American musician best known as the guitarist and keyboardist of the pop punk band Good Charlotte.
Billy Martin (born June 15, 1981) is an American musician, songwriter, producer and composer. He joined Good Charlotte as a guitarist in 1999 after disbanding his high school nu metal/grunge band, Overflow. From 2000-2009 Billy ran a clothing line called Level 27. The line featured Martin's gothic themed artwork and served as a stepping stone to his art career. He has had a successful career as an illustrator, working for companies such as Disney, Marvel, Nickelodeon, Hasbro and many more. He also appeared with his bandmates in the 2001 film Not Another Teen Movie and the television special iCarly iGo to Japan.
On March 1, 2008, Martin married hairstylist Linzi Williamson, whom he had been dating for eight years. On January 26, 2009, she gave birth to their first child, Dreavyn.[1] In 2012 the couple welcomed their second son, Zander.