Kaolla's sister. Both are magical girls from another country. Amalla has been in love with Ramba Ru for a long time, but has never admitted her feelings to him.
Sometimes spelled Lamba Lu. "Brother" to Amalla and Kaolla. In reality, he is a cousin of theirs, but they have grown up as siblings. He is the king of their nation, and in the tradition of their people, he has to serve in the military for a period of time. Before that happens, he is required to marry. Kaolla is the one who is to marry him, though when he learns that Kaolla can only see him as a brother but Amalla does not, he marries Amalla instead.
Ramba Ru looks almost exactly like Keitaro when they both have their glasses on; the only striking difference is that he's a bit more tanned than Keitaro is. Unlike Keitaro, however, Ramba Ru is very calm, collected, and 'together', and not at all clumsy or awkward.
Japanese Seiyuu: Masako Nozawa
Also known as Grandma Hina. The original manager of Hinata, she retired so she could travel the world and visit other hot springs, and made Keitaro the new manager.
In the manga, it is Grandma Hina who knows the true identity of the girl whom Keitaro made a promise with.
Japanese Seiyuu:: Ryutaro Okiayu
Originally Keitaro's rival for Narusegawa, he eventually loses all of his money in his pursuit of her. He remained fairly tenacious for a time, but eventually gave up after getting deep into debt with the Hinata Sou. Haruka let him try to work off his debts at a very low rate of pay; from that point on, Kentaro became an occasional background character and plot device. Kentaro appears only in the Love Hina anime, not the manga. He also tends to make jokes at the sterotype of the anime's genre.
Japanese Seiyuu: Yuri Shiratori
Naru's younger sister. She initially tries to get Keitaro and Mutsumi together in the hopes that Naru would return home if Keitaro were taken. She gives up on this when she and Naru clear up a few family misconceptions.
The character of Mei-chan was created for and appears primarily in the Love Hina anime, though she made a very brief guest appearance in the final story of the final volume of the manga.
Motoko's older sister and the one currently entrusted with the keeping of their family's Shinmei school tradition. She is not active in running the school, having given up the life of the sword for marriage, and it is her duty to hand the school over to Motoko's care when the time comes.
Though Motoko has lived in fear of Tsuruko for years, Tsuruko has Motoko's best interests at heart and her only real wish is for her sister to be happy on whatever path she chooses to walk.
Japanese Seiyuu: Michio Miyashita
Shirai is a childhood 'friend' of Keitaro, even if most of that friendship involves Keitaro being on the wrong end of Shirai and Haitani's jibes.
Everyone, including Keitaro, seems to have trouble remembering who Shirai every time they meet him.
Japanese Seiyuu: Hiroyuki Yoshino
Haitani is another of Keitaro's childhood friends, and is (apart from a few physical differences) almost exactly like Shirai.
Ema appears in the epilogue to Love Hina that is found in book 14, set 4 years after the end of the main story. She is a 15 year old girl hoping to get into Tokyo Daigaku and is a new resident at Hinata Sou. She does not appear in the anime.
Her introduction to the Hinata house parallels Keitaro's. She finds the house deserted, so goes to take a bath in the hot springs. A 4-years-older Shinobu then gets in, thinking Ema is someone else (it is not clear who) and comments on how big her breasts now are, showing them to Ema. As with Naru and Keitaro many years earlier, Shinobu realises Ema is not whoever she thought Ema was, screams and chases Ema through the house.
Ema then makes some Keitaro-style mess-ups, including trying on the headpiece of Naru's wedding dress and tripping an alarm Su had set up then fleeing with Keitaro who appears in a Seta-style van crash.
Japanese Seiyuu: Yukie Maeda
The turtle given to Keitaro by Mutsumi. She is an 'onsen-tamago' or hot-springs turtle, and like others of her species, it appears that she can fly. Kaolla and Mutsumi appear to have the ability to speak with Tama.
Japanese Seiyuu: Mizuki Nana
Nyamo is a resident of the island Pararakelse, where Keitaro finds himself after he runs off because he thought he'd failed the entrance exam in book 7 and in the Love Hina Spring Special. She is working with Seta because Seta knew her grandfather and she wants to continue his work now that he is dead.
Nyamo is physically almost identical to Shinobu, and shares a number of other traits with her as well, including her extreme initial shyness and reluctance to speak.
Japanese Seiyuu: Koorogi Satomi
An automaton with broken legs, built more than 100 years ago and bought by Tokyo Imperial University while she was on display at the Paris World's Fair in 1900. Urashima Keisuke purchased her from the university in hopes of repairing her.
Moé-chan is (or is similar to) a Tsukumogami, a tool or doll that has been cared for for 99 years and comes to life in its 100th year. Though considered to be a type of supernatural monster, Tsukumogami are not necessarily hostile or dangerous.
Moé-chan was a great friend of Keisuke, granny Hina's father and great-grandfather to Keitaro and Haruka. Keisuke had promised to fix Moé-chan's legs; but like Keitaro, Keisuke had a poor memory and eventually forgot about Moé-chan. Keitaro would later make the same promise to fix her. With the help of the Hinata residents, particularly Kaolla's help, he ultimately fulfilled his promise and Moé-chan was able to walk again.
Moé-chan's name came from a stamp on the nape of her neck, though it was later revealed as a misinterpretation; the stamp was smudged and originally read môme, the French word for a child's doll.
Moé-chan's only appearance in the TV series is in episode 20, and she has a very brief reappearance in Love Hina Again. She never appeared in the manga.Amalla Su
Ramba Ru
Urashima Hina
Sakata Kentaro
English Voice actor: Steve ArenoNarusegawa Mei
Aoyama Tsuruko
Shirai Kimiaki
English Voice Actor: Gene HollidayHaitani Masayuki
English Voice Actor: Brandon JeremyEma Maeda
Tama
English Voice Actor: Wendee LeeNyamo Namo
Moé-chan