CosMo

cosMo is an utaite, though he's more known as a producer as which he's known under the name Bousou-P (暴走P). He's also an animator.

He's somtimes depicted as female and tagged as "cosMo (Mahou ShoujoP) (コスモ(魔法少女p))", an example being Matryoshka or Senbonzakura (both duets with OwataP).

Trivia

 * He's Blood type A.