Roswaal L. Mathers

Race: Human

Gender: Male

Hair color: Indigo

Eye colors: yellow (left), blue (right)

Height: 186 cm (6'1'')

Weight: around 60 kg

A Margrave as well as an Imperial Wizard and Count who is a benefactor and sponsor for Emilia's bid for the throne. He has strange appearance and voice that Subaru likens to a clown. He is a highly influential individual who is also one of Lugnica's powerful mages.

(Source: Re:Zero Wiki)