Teena-Chan

Teena-Chan is a Japanese Anime series based on the Manga series by Waku Yaniko that was published by Shueisha for the Weekly Shōnen Jump from 1969-2000.

Anime Series
This anime stars Teena Todo, a 13 year old half-Vampire half-Zombie girl, who, along with her companians orb monster Graa Graa and step-sisters Perra and Gata Toniko, was sent to the human world to collect the monsters that escaped from the monster world with the help of Kenji Norotuke, an orphaned 13 year old horror movie loving boy who met Teena, Graa, Perra and Gata when he ran away from his aunt after his parents died.

Sequel Series
This anime sequel series (based on the manga series created by Machiko Yaniko and published by Shueisha for the Weekley Shōnen Jump) stars Kenji and Teena, now adults and living in the monster world, taking care of their 3 children named Takano, Machako and Fujio

Characters
Teena Todo is a girl who is half-vampire and half-zombie (being the daughter of Taro Banpaia the vampire and Madoko Todo the zombie). She is very cheeky but also serious when it comes to escaped monsters. Teena is secretly in love with Kenji.

Graa Graa is an orb monster who is the princess of Graa Land. She is a smart monster who is a graduate of Graa University School. She can only say "Graa!" and does her "Graa!" pose whenever she gets suprised.

Perra and Gata Toniko are both step-sisters that are from Domanto Land. Perra is a fun-lover while Gata is serious and calm. Perra was created by Frankenstein Toniko while Gata was created by Tanamiki Anzuka and Banata Noru until the latter's death.

Kenji Norotuke is an orphaned boy who loves horror movies. He is just as cheeky as Teena but is still more serious than her when it comes to monsters. He is aware that Teena has a crush on him but doesn't want to tell her this until he's ready to tell her that he also likes her.

Original Series
Masako Nozawa: Teena Todo

Junko Hori: Graa Graa

Nobuyo Ōyama: Perra Tomiko

Kazue Takahashi: Gata Tomiko

Mari Shimizu: Kenji Norotuke

Sequel Series
Masako Nozawa: Teena Todo

Takashi Kusao: Kenji Norotuke

Junko Hori: Graa Graa

Tarako: Perra Tomiko

Keiko Toda: Gata Tomiko

Urara Takano: Takano

Meyumi Tanaka: Machako

Kappei Yamagushi: Fujio

Trivia

 * Despite appearing in a Jump manga magazine, Teena (just like all of the Waku and Machiko Yaniko characters created for Jump-related magazines) never appeared in and Jump-related games due to the merchandising rights being owned by Bandai and Sega.