Durarara!!x2 Adding Insult to Injury (2015–2016) Online
Ruri Hijiribe, idol, and Kasuka Heiwajima, a.k.a. Yuhei Hanejima, an up-and-coming actor. Though both enjoy tremendous popularity, few know them in person. One day, Ruri's secret is accidentally discovered by Kasuka, and she struggles with anguish even as she feels conflicted. It is a fact that she absolutely can't let anyone else know. Meanwhile, Ikebukuro is a hotbed of new encounters and various situations coming to a head.
| Episode cast overview, first billed only: | |||
 | Toshiyuki Toyonaga | - | Mikado Ryugamine (voice) |
| Kana Hanazawa | - | Anri Sonohara (voice) |
 | Hiroshi Kamiya | - | Izaya Orihara (voice) |
 | Daisuke Ono | - | Shizuo Heiwajima (voice) |
 | Miyuki Sawashiro | - | Celty Sturluson (voice) |
 | Jun Fukuyama | - | Shinra Kishitani (voice) |
| Hiro Shimono | - | Aoba Kuronuma (voice) |
 | Yûichi Nakamura | - | Kyohei Kadota (voice) |
 | Yûki Kaji | - | Walker Yumasaki (voice) |
| Ayahi Takagaki | - | Erika Karisawa (voice) |
| Takuma Terashima | - | Saburo Togusa (voice) |
| Hisako Kanemoto | - | Kururi Orihara (voice) |
| Eri Kitamura | - | Mairu Orihara (voice) |
 | Daisuke Kishio | - | Kasuka Heiwajima (voice) |
| Saki Fujita | - | Ruri Hijiribe (voice) |