Karin Hanazono (花園 花鈴, Hanazono Karin?)
Voiced by: Amu Ichigo Amano Hoshina
Karin is the protagonist of the series. Her name literally means "The Flower Bell of the Flower Garden," with the "Flower Garden" as her surname and "Flower Bell" as her given name. Ilove uKarin used to live with her aunt because her parents died a long time ago, but she moved in with Kazune and Himeka after they found out she can tranform into a god. She is an outgoing person and sticks up for her friends, even though she does bad in school. She had a cat named Shii-chan that passed away in the beginning of the first series. In the first series, she has recently ended 6th grade and starts 7th in volume 1, and is 12 years old. In Chu, she is in 8th grade and is 13 years old (as stated in volume 1 of Chu). The ring Karin originally thought was her mother's ring allows her to borrow godly power. Her ring is silver and has the power of the goddess Athena (Aphrodite in Chu). It is later revealed in the later volumes of the manga that Karin is actually Kazune Kujyou's wife, Suzuka Kujyou (Suzuka is Karin backwards, since suzu is another way to read the character rin), Suzuka Kujyou is Karin Hanazono. It is shown that whenever Kazune becomes drunk (even with the so much as the smell of alcohol) he acts perverted towards Karin. They end up together and will end up loving each other (without either of them knowing at first in the beginning of the anime). At the end of Kamichama Karin Chu, it is shown that she and Kazune get married.
Kazune Kujyou (九条 和音, Kujō Kazune?)
Voiced by: Miyuki Sawashiro
Kazune is the main male protagonist. His ring has the power of Apollo Greek god of light (in the Chu sequel, he has a different ring with the power of Ouranus). He is in 8th grade. While he acts cool during much of the story, Himeka states that in the past, he was weak and cried frequently, only becoming his present self when he turned ten years old Or 13 years old , after knowing who he was. While Himeka loves bugs, Kazune hates and fears them; in Kamichama Karin, Himeka reveals that Kazune's fear of bugs developed when he and Himeka ran into a giant bug when he was little (which, ironically, was Karin in a bug suit). Even though he is a clone of professor Kazuto Kujyou, he is incomplete and passes out after transforming in god form. He often speaks to Karin in a way that she deems sexist, talking about things like the inherent stupidity or weakness of girls (this is used against him in Chu when Jin calls him a 'girly boy') He himself is the clone of his "father". The older Kazune, Kazuto, put his research in Himeka, and then split them in half to protect his work from his former partner, Kirihiko Karasuma.
In Chu, Karin's and his son, Suzune come from the future. He warns them that Kazune goes missing in the future (with a woman Suzune claims), and later it is discovered that he actually died soon after Suzune was born. When he learns of this, he stays away from Karin, believing what he did was horrible and had caused the future Karin too much trouble. Karin punches him after discovering this was the reason why he avoided her, saying she knew he disappeared in the future but was working hard to change that.
Himeka Kujyou (九条 姫香, Kujō Himeka?)
Voiced by: Noriko Shitaya
Himeka is Karin's friend and Kazune's "cousin". She is also Suzune's "sister" due to the fact that she is the child of Suzuka and Kazuto. Originally she contained Kazuto's god research data, she was then split into two by Kirihiko attempting to steal the research data. One half lives with Kazune, while the other lives with the Karasumas. When one Himeka becomes stronger, the other becomes weaker. Since she was a young girl, she has always defended Kazune, who was a bit of a crybaby when they were little. She loves bugs and is a good cook. She is in 8th grade. Like Karin, she does poorly in school. It is later revealed that she is Kazuto and Suzuka's daughter. She tells Karin at one point that while she has a strong affection for Kazune, it is not necessarily a romantic attachment, as Kazune is "kind of like a brother and kind of like a dad" to Himeka (referencing Kazune's identity as a clone of Himeka's father).
She also witnessed Kazune and Karin kissing in the anime. Later in the series, Kazune says that Himeka is his daughter (along with Karin in Kamichama Karin 7).
Kirio Karasuma (烏丸 キリオ, Karasuma Kirio?)
Voiced by: Shintaro Asanuma
Kirio is the main antagonist. He and Kirika are adopted by Kirihiko while they were children. He is the student council president of Sakuragaoka Academy. He tests the protagonists and fights them outside the campus. Karin refers to him as "Mr. Glasses Man" (meganekko), "Four eyes-san" or "Glasses Guy". His only true relative is his twin sister Kirika, but he does have another "sister" by the name of Himeka. In the anime, he is a running gag character; often leaving before ever winning and revealing his plot to Karin and the others while they didn't know, thinking they did. His ring has the powers of the god Ares. Later in the series, his ring is destroyed by Kazune. He then gets possessed by his father, Kirihiko, by the Zeus ring he wore after his broke, but in the end Karin and Kazune saved him.(episode 26) He then returns in Chu. Now, with the other Himeka, he is trying to create a new Zeus ring using the 'seed of chaos',in order to save the future Kirika who is sick. To do that, he has to revive his father, whom currently resides within Kuga Jin.
Michiru Nishikiori (錦織 みちる, Nishikiori Michiru?)
Voiced by: Akira Ishida
Michiru or Micchi is a transferred student from England and at one time lived with Karin, Kazune and Himeka. When he was little, he was involved in an accident that killed his parents and crushed his left eye beyond repair, and almost died. But Kazuto made an eye for Michiru, and saved his life. Since he was in the hospital for a year, he is a year older than Karin, Kazune, and Himeka. Michiru shares a close bond to Kazune, because he first thought of him as Kazuto, and still respects Kazune. In the manga, Michiru's friend Ami brought a notebook containing information about Himeka for Kazune to read. Michiru is a bit a pervert around Karin, and in the manga, he stole Kazune's first kiss. In Chu, his transformation is the god Poseidon .
Jin Kuga (久我 神, Kuga Jin?)
Voiced by: Tatsuhisa Suzuki
Jin Kuga is first introduced in Kamichama Karin Chu. He is first seen as any regular "idol" that's new to the show bizz. Jin has a strong confidence in himself and wishes to regain his father's 'honor', as revealed later on in the series. Around the last volumes, it even shows that Jin is actually the father of Kirio Karasuma, who is Kirihiko Karasuma. Just like how Karin Hanazono is actually Kazune's wife, Suzuka Hanazono/Kujyou. Jin tends to 'glomp' and show a lot of affection for Karin which tends to make him Kazune's 'love rival' for her. Even though Jin normally has his sweet an adorable personality, he can sometimes be a pervert (Koge Donbo herself even puts it on his quick profile in the manga) around Karin. In the Chu series, Jin has the ability to transform into the god of the underworld, Hades.