Walker Yumasaki

Walker Yumasaki is a supporting character in the light novel and anime series Durarara!. Like his female friend and companion, Erika Karisawa, he is a very passionate otaku and manga reader, although he doesn't share the same love for yaoi that Erika does. He and Erika are nearly always together, along with Kyohei Kadota and Saburo Togusa.

He is voiced by Yuki Kaiji in the Japanese version of the anime and Brian Beacock in the English version, the latter of whom also voices Takato Matsuki.

About
He likes to perform torture by letting the victim to choose a light novel or manga, and carrying out the contents. He seems to be carefree and is usually seen wearing a wide dumb smile, but in reality he's a serious thinker. Like Erika, he is very mysterious person. He is a member of the anonymous online gang Dollars and is also a member of Kadota's gang. In the later episodes, Walker was asked to remain inside the van for the invasion of the Yellow Scarves, because he would "stand out too much". He can also be seen with Erika in the hospital in the last episode, with her head lying on his shoulder.