Koujirou Takada (高田 高二郎 Takada Kōjirō) is a character in Act-Age manga series. He is an actor and also member of Mifune Actor's Club.
He appeared as a character in a drama with title Dai Chien! Sankinkōtai together with Kanon Yamamori. In that drama filming, Kei Yonagi kicked him unconsciously while acting as Edo Era Villager. Later, he give Yonagi an advice that there is difference between true-to-life acting and wild acting, refer to Yonagi's acting method.