Main characters

Light Yagami (Kira) (夜神 月, Yagami Raito?)
L. Lawliet (L) (エル, Eru?)
Misa Amane (弥 海砂, Amane Misa?)
Mello (メロ, Mero?, real name: Mihael Keehl)
Near (ニア, Nia?, real name: Nate River)
Teru Mikami (魅上 照, Mikami Teru?)

Shinigami (Death Gods)

Ryuk (リューク, Ryūku?)
Rem (レム, Remu?)
Shidou (シドウ, Shidō?)