|Appearance(s):||Grand Theft Auto IV|
|Full name:||Robert Jefferson|
|Also known as:||Mr. Jefferson|
|Date of birth:||Unknown|
|Main affiliation:||Jon Gravelli|
|Businesses:||Secretary of Security Enforcement (formerly)|
|Voiced by:||Tom Tammi|
Robert "Bobby" Jefferson (also known as Mr. Jefferson) is the former Secretary of Security Enforcement in Liberty City. Dying Gambetti Family Don Jon Gravelli hires Niko Bellic to protect Bobby Jefferson on his way to a speech warning the city of the threat presented by foreign gangs (and specifically the Russian Mafia) after arriving from upstate. Obviously, the Russians prepared an ambush, but Niko manages to keep Bobby Jefferson safe and drives him to City Hall, so that he can give his speech. Bobby Jefferson owns a black Emperor Lokus with a blue undertone.
- During his one and only appearance, Bobby will use of a large variety of suits during the mission because he takes the character model of a pedestrian commonly found in The Exchange. The suits vary from blue to beige and the ties vary from red to black.