Thread:SecondOpinion/@comment-5758863-20150401180625/@comment-5688420-20150706015902

Minerva: Minori Chihara (Yuki Nagato) or Emiri Kato (Akatsuki, Kagami Hiiragi)

Nirvana: Tomoko Kaneda (Chiyo-chan, Gretel) or Ai Nonaka (Beauty)

or if you want, both of them can be voiced by the same seiyuu

Pietro: Bryce Papenbrook (Rin Okumura, Shirou Emiya in the Fate/Stay night UBW dub)

Sebastian in English: Robbie Daymond (Mamoru Chiba/Tuxedo Mask in the VIZ redub of Sailor Monn, Shirou Emiya in the Fate/Stay night UBW dub)