"Quaker" in Mario Kart Wii? That Character Doesn't Exist

There is no character named "Quaker" in Mario Kart Wii. You're likely misremembering the name, confusing it with another game, or thinking of a fan-made mod character.

Actual Unlockable Characters & Methods

The roster unlocks through Grand Prix progression and mileage:

• Win Cups: Complete 50cc, 100cc, 150cc Grand Prix cups.
• Earn Gold Trophies: 1st place in all cups of an engine class.
• Accumulate Stars: Based on race performance (drift, tricks, placement).
• Mirror Mode: Unlock after 150cc completion for additional characters.

Full Default + Unlockable Roster

Starters: Mario, Luigi, Peach, Daisy, Yoshi, Bowser, Wario, Donkey Kong, Toad, Koopa Troopa.
Unlockables: Dry Bones, Rosalina, Baby Mario, Baby Luigi, Baby Peach, Baby Daisy, Baby Bowser, Baby Rosalina, Mii (Male/Female).
Total: 24 playable characters + Miis.

Describe the character you're thinking of (appearance, vehicle, game) and I'll help identify it.