From Homestar Runner Wiki
Perducci, played by The King of Town, is the criminal mastermind of Dangeresque 1: Dangeresque, too? (featured in email dangeresque 3).
Hoping to kidnap Cutesy Buttons, Perducci intercepts the serum at the border. When Dangeresque discovers him hiding in Istanbul, Perducci orders his henchman and secret weapon, Killingyouguy to eliminate the perpetrator. Dangeresque, with the aid of his partner Dangeresque Too, thwarts Perducci's plans by defeating Killingyouguy and saving both Cutesy and the serum. Perducci later reappears in Dangeresque 3: The Criminal Projective as one of the main antagonists.
He wears a blue suit, a bowler hat, sunglasses, and a name tag reading, "Hello, my name is perducci". A running gag involving him is Dangeresque yelling out his name to the sky, fist raised.
Dangeresque 1: Dangeresque, too?, Dangeresque 2: This Time, It's Not Dangeresque 1,
Dangeresque 3: The Criminal Projective (Mini-Site, Dangeresque: THREE in 3D), Dangeresque: Put 'Em on Ice!,
Dangeresque: Puppet Squad (The Curly Fried Caper)
Strong Bad: Dangeresque
Homestar Runner: Dangeresque Too, Uzi Bazooka
Coach Z: Renaldo
Marzipan: Cutesy Buttons, Sultry Buttons
Pom Pom: Professor Experimento
The King of Town: Perducci
Strong Mad (Himself): Killingyouguy
Bubs: Baron Darin Diamonocle
The Poopsmith: Kidnapping Victim
Senor Cardgage: Dadgeresque
Strong Sad (El Dumpo): Hot Tub, The Informant, The Monster, The Stunt Double
The Cheat: Craig, Istanbul, Szechuan Steve
Unknown: The Chief, Kowalski
The theme from DANGERESQUE II: This time, it's not Dangeresque I, Today is Alright 4 2Nite
Nunchuck Gun, Ruby Powered Rocket, Dangeresque Roomisode 1: Behind the Dangerdesque (Walkthrough, Responses)