What Japanese manga series was Karen Strassman a voice actress in?
Karen Strassman:  Some of her major roles are Kallen Stadtfeld in the "Code Geass" series, Miyuki Takara in "Lucky Star", Nina Fortner in "Monster", Rider in "Fate/stay night", Sawako Yamanaka in "K-On! Monster (manga): Monster (モンスター , Monsutā , sometimes referred to as "Naoki Urasawa's "Monster"") is a Japanese manga series written and illustrated by Naoki Urasawa.
Monster