Who is the Japanese voice actor for Bolt?

The Japanese voice actor for Bolt is Junichi Yanagita.

Which anime is Bolt from?

Bolt appears in Black★★Rock Shooter: Dawn Fall.

In Black★★Rock Shooter: Dawn Fall, Bolt is listed as a supporting character.

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He is the Colonel's subordinate and one of the Peacebuilding Forces members. (Source: Black Rock Shooter Wiki)

Black★★Rock Shooter: Dawn Fall

Junichi Yanagita

Japanese

Alexandre Gillet

French

Fabrizio De Flaviis

Italian

Óscar Flores

Spanish

Raúl Rodríguez

Spanish