John "Red" Shea (born August 12, 1965) was an Irish-American mobster from Boston involved in narcotics and an associate of crime kingpin Whitey Bulger and the Winter Hill Gang during the 1980s and 90s. He was indicted on cocaine trafficking charges in 1990 and served 12 years in prison.
Shea wrote a book called Rat Bastards; The Story of South Boston's Most Honorable Irish Mobster about his experience with the Winter Hill Gang. The main theme of the book is that he is a "stand-up guy" who refused to accept a plea deal to testify against his associates; and consequently had to serve the full sentence for his conviction. Actor and Boston native Mark Wahlberg wrote the introduction to his book.
During a game of football with Wahlberg and actor Alec Baldwin on the set of The Departed, Baldwin accidentally fractured Shea's thumb.