Special Agent Vivian "Viv" Johnson is a fictional character played by actress Marianne Jean-Baptiste on the CBS drama Without a Trace. Vivian is second in command of the FBI missing persons case squad in New York City. The squad solves a new missing persons case every week. Vivian Johnson has had conflict with her boss Agent Jack Malone because she lost out on a promotion after Jack decided against transferring to the Chicago field office and asked for his old job back. In the third season Vivian underwent open heart surgery. Vivian is married and is the mother of a teenage son named Reggie.