The full title is Dangan Ronpa: Academy of Hope and High School Students of Despair. However, do to the length, fans all over the world (and on Pixiv) shorten it to Dangan Ronpa. The shortened name has caught on.
A sequel was recently announced, called Super Dangan Ronpa 2: Goodbye, High School of Despair. (The tag for it is スーパーダンガンロンパ2). This has an independent Pixpedia article over at スーパーダンガンロンパ2.
Summary
Characters
Makoto Naegi
Super High-School Level Good Luck
Voiced by: Megumi Ogata
Sayaka Maizono
Super High-School Level Idol
Voiced by: Makiko Oomoto
Leon Kuwata
Super High-School Level Baseball Player
Voiced by: Takahiro Sakurai
Kyouko Kirigiri
Super High-School Level ???
Voiced by: Youko Hikasa
Byakuya Togami
Super High School-Level Heir
Voiced by: Akira Ishida
Aoi Asahina
Super High-School Level Swimmer
Voiced by: Chiwa Saitou
Sakura Oogami
Super High-School Level Westler
Voiced by: KUJIRA
Kiyotaka Ishimaru
Super High-School Level Hall Monitor
Voiced by: Kousuke Toriumi
Mondo Oowada
Super High-School Level Gang Leader
Voiced by: Kazuya Nakai
Chihiro Fujisaki
Super High-School Level Hacker
Voiced by: Kouki Miyata
Celestia Ludenberg
Super High-School Level Gambler
Voiced by: Hekiru Shiina
Hifumi Yamada
Super High-School Level Doujinshi Author
Voiced by: Kappei Yamaguchi
Touko Fukawa
Super High-School Level Literary Girl
Voiced by: Miyuki Sawashiro
Hagakure Yasuhiro
Super High-School Level Fortune Teller
Voiced by: Masaya Matsukaze
Junko Enoshima
Super High-School Level Fashion Girl (Gal/ギャル)
Voiced by: Megumi Toyoguchi
Monobear
Hope's Peak Academy's "Principal"
Voiced by: Nobuyo Oyama