Claude Speed: Professional Thug, Good Racer, Owned A Abandoned Garage In San Fierro, Kills 2 Dons Of The Mafia ( Kenji In The Yakuza And Salvatore For The Leone ) Has Weapons Being Supplied To Him By The Army Itself (Phil Cassidy). Killed Catalina And Screwed The Cartel Over. Silent, Calm Killer. Appeared In 2D Universe And 3D Universe.
Claude's name never appears in GTA III, or any GTA game. He does not have a last name.
R* said he MAY OR MAY NOT be Speed. If the OP wants to think he is, let him.