|Level|| Tennis: Unknown
Boxing: Coach only
Baseball: Teammate only
In Wii Party U, William is a Master Mii.
- You can earn his badge for making 25 edits on "Wii Sports Club" articles or for every 500 edits you make on "Master CPU" articles.
- His Japanese name is Wiriamu.
- He is the only CPU Mii in the entire series whose name starts with W.
- He is the only Master Mii from Wii Party U with the regular glasses.
- Merrick previously had this Mii's name in a Streetpass Promotion.
- His name is of an old Germanic origin, meaning "Vehement Protector". It became popular in the English Language after the Norman Conquest of England in 1066.
- He and Bo-Jia are the only Wii Party U Master Miis to have a mustache but no beard.
- There is a CPU Mii from Wii Sports Club with the Spanish translation of his name: Guillermo.
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