| character description | character name | actor/actress |
| A suave, infamous forger and thief turned FBI Consultant | |
| An FBI agent in the white collar crime unit and the only person ever to catch his new consultant (twice) | |
| A quirky con-man who is a friend and confidante of the thief/consultant | |
| An event planner and the FBI agent's very understanding wife | |
| The thief/consultant's girlfriend who was killed in an explosion | |
| A fellow FBI agent who is often stuck babysitting the thief/consultant | |
| A friend of the thief/consultant who works as a black market fence | |
| | character description | character name | actor/actress |
| A junior FBI agent who served briefly on the team (season 1) | |
| Another FBI agent who provided covert help from Washington D.C. and was then reassigned to the team (season 2) | |
| A widow who offers her guest room to the thief/consultant | |
| An agent from the Office of Professional Responsibility thought to be working against the team | |
| The FBI agent in charge of the Manhattan White Collar Crime Unit | |
| An insurance investigator who is determined to send the thief consultant back to prison over a stolen Raphael | |
| The item that the thief/consultant supposedly stole (but didn't) that everyone is desperate to lay their hands on | |
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