Religion: not determined yet
Name: Billy Costigan
Other Names: William Costigan; William "Billy" Costigan, Jr.
Classification:
non-feature lead character
Publisher(s): 
First Appearance: The Departed (2006)
Creators: Alan Mak, Felix Chong, William Monahan, Martin Scorsese, Leonardo DiCaprio (actor)
Number of Appearances: 1
Enemy of: Colin Sullivan, Frank Costello
Occupation: police
Worked for: The Massachusetts State Police
Location: Boston, Massachusetts, USA
Race: white
Gender: male
Note: undercover cop infiltrating Frank Costello's mob crew
The Departed (2006) (lead character)
Suggested links for further research about this character:
- http://en.wikipedia.org/wiki/The_Departed
- http://www.imdb.com/character/ch0251381/
- http://www.imdb.com/title/tt0407887/