|Tribe=Tough
|Rank=A
|TypeAttribute=Thunder
|Japanese Name=キンカク, Kinkaku
|French Name=Castelius I
|Yokai Watch 1=078
|Yokai Watch 2=112
|Time=Present
|Evolution=
|Fusion=Castelius II + Castelius II = Castelius I, Castelius I + Platinum Bar = Castelius Max
|Favorite Food=[[Milk]]
|Acquired by=