Shiro Mifune

Shiro Mifune (御船 士郎 Mifune Shirō^?) is a treasure hunter and Ian's best friend from Europe.
Shiro Mifune is portrayed by Kenji Ebisawa (海老澤 健次 Ebisawa Kenji^?), who previously portrayed Gunpei Ishihara/Go-on Black in Engine Sentai Go-onger.