Don Weaso is the leader of the mafia of weasels and the tertiary villain who appears in Conker's Bad Fur Day and its remake, Conker: Live & Reloaded.
Don Weaso was a minion of the Panther King who kidnaps Berri halfway through the game and sends her to the Prehistoric Era. He appears whenConker is sent to his office by the Rock Solid bouncer (possibly indicating he owns the club), the Don was in the middle of a meeting between his mafia lackeys, and beats Paulie to death for not respecting him. He then gives Conker a job to do for him, which is wiping out the Uga-Bugas in the cave by raising the lava with a bomb, after Conker does this, Don Weaso is not seen again until later in the game.
He later appeared in the Heist chapter of the game where he sends Conker and Berri out on another job to break into the Feral Reserve Bank and replenish his funds. This was however a trap set up by the Panther King who wanted to get close enough to Conker to turn him into a table leg. Don Weaso then appears in the vault with the Panther King and violently shoots Berri to death. When Heinrich bursts out of the Panther King's stomach, Don Weaso runs behind the throne and disappears. Don Weaso's fate was possibly being sucked into space with Professor von Kripplespac, along with the remains of the Panther King and Berri. It is unknown if he died or not.
How he was recruited by Bowser
After the events of Conker's Bad Fur Day, Bowser offered Weaso a job to eliminate Winnie the Pooh and he did not refuse.