4. Mr. Blonde (Michael Madsen), "Reservoir Dogs"
Before he showed up as the secretly psychopathic Budd in the "Kill Bill" movies, Michael Madsen rattled "Reservoir Dogs" with a gleefully deranged, thankfully doomed character that stands as one of Tarantino's most interesting creations. Vic Vega, better known as "Mr. Blonde," is completely devoid of nerves: when Harvey Keitel's character is yapping at him, Madsen's madman shrugs off the insults, and when a cop is tied to a chair, Blonde doesn't think twice about helping him out with that pesky ear. In a story about honor among thieves and non-thieves, Mr. Blonde is stuck in the middle as a soulless mercenary, with a type of bone-deep carelessness that makes him truly a nightmare.