Vic Vega

Victor "Vic" Vega, also known as "Toothpick Vic" or "Mr. Blonde", is Vincent Vega's brother. He is not in Pulp Fiction, but in Reservoir Dogs, another Tarantino movie. Just as Richard Gecko is the madman of the Gecko brothers, Vic is the the madman of the Vega brothers.

Vic was a paroled career criminal hired by gangster Joe Cabot to perform a jewelry heist with a team of professional thieves. During the robbery, he makes good on a threat to massacre the entire store after the alarm had been tripped, forcing the team to flee to the designated safehouse. He takes police officer Marvin Nash hostage as he escapes. At the safehouse, he gets into a confrontation with fellow robbers Mr. White and Mr. Pink over whether or not to help their compatriot Mr. Orange, who has been badly wounded.

Trivia

 * Vic Vega is a playable character in the video game adaptation of Reservoir Dogs. He is voiced by Madsen, and is the only character to feature the original actor's voice and likeness.


 * Ironically, the actor who played Victor "Vic" Vega, Michael Madsen, is averse to violence, and had a hard time shooting the torture film sequence. In a part of the scene where police officer Marvin Nash pleads for his life by saying he has a child at home, the line was ad-libbed; Madsen himself had just become a father at that time, and was so horrified that he had to stop the scene.


 * Tarantino wanted Madsen to play Vincent Vega in Pulp Fiction, but eventually casted actor John Travolta and decided that the two were brothers. He planned to make a film that starred both characters, Double V Vega but the project has now been abandoned.

Source
Most of the text is taken from a former Wikipedia article