At 12, Goodman quit school and started living on the streets. He sold drugs, married young, and served time in prison for his criminal activity. It was not until he saw Brian's Song that Goodman made a decision to become an actor. However, when Goodman came out of prison, he would steal from drug dealers. After deciding what he was going to do with his life, he went on an audition for a low-budget film called Southie with Donnie Walhberg. Goodman also began writing.
His recurring role on Rizzoli & Isles led to him becoming a main cast member starting with the season 3 premiere. Goodman departed the main cast at the end of season 4, but has since made 3 guest appearances in season 5. He has not appeared in season 6.