Lala's personal bodyguard and the best swordsman of the planet Deviluke. He is currently Assistant Chief to Rito's father who is a manga writer due to an incident caused by Lala. Despite his skill with a sword, he has a horrible sense of direction, resulting in him being constantly lost (another running gag in the series). 

In To LOVE-Ru Darkness, he now works as a mangaka.

(Source Wikipedia)

Rito Yuuki is unlucky when it comes to love — no matter how hard he tries to confess to his crush, his efforts end in failure. After another day’s confession goes down the drain, Rito spends his night sulking in his bathtub. But when a naked girl with a pointed tail teleports into the tub with him, it seems like Rito’s luck is finally looking up! His fortune doesn’t last long when he finds himself accidentally engaged to the buxom beauty who is none other than the princess of the planet Deviluke! 
 
(Source: HIDIVE)

[Blog](http://koyap.jugem.jp/) | [Agency Profile](https://tsf-official.com/talent/takehito-koyasu/)

Koyasu is the most prolific voice actor in the industry, having been credited for over 700 roles as of April 2022.

Growing up, Koyasu skipped out on going to school to watch movies at home because he wanted to become an actor. It wasn’t until later that he became interested in voice acting after having seen [Galaxy Express 999](https://anilist.co/anime/1491/). After graduation he entered a voice acting school. In 1988, he made his voice acting debut, and got his first regular role a year later voicing [Gai](https://anilist.co/character/13374/) in [Tenkuu Senki Shurato](https://anilist.co/anime/2113/).

Though having voiced more characters in the medium than anyone else, he is probably most known for his role as [Dio Brando](https://anilist.co/character/4004/) in [JoJo’s Bizarre Adventure](https://anilist.co/anime/14719/). He has stated that he likes playing villainous characters.

Koyasu has taken over many of [Kaneto Shiozawa](https://anilist.co/staff/95424/)’s roles after Shiozawa’s passing.

Father of [Kouki Koyasu](https://anilist.co/staff/219102/).

__Non-Anime Roles:__

- Olivert Reise Arnor - The Legend of Heroes Series (VG)
- More - Metaphor: ReFantazio (VG)
- Mustang - Goddess of Victory: Nikke (VG)

**[Twitter](https://twitter.com/scottgibbsactor?lang=en) | [Instagram](https://www.instagram.com/scottgibbsactor/)**

As close encounters of the twisted kind between the residents of the planet Develuke (represented primarily by the female members of the royal family) and the inhabitants of Earth (represented mainly by one very exhausted Rito Yuki) continue to escalate, the situation spirals even further out of control. When junior princesses Nana and Momo transferred into Earth School where big sister LaLa can (theoretically) keep an eye on them, things SHOULD be smooth sailing. But when Momo decides she'd like to "supplement" Rito's relationship with LaLa with a little "sisterly love," you know LaLa's not going to waste any time splitting harems. Unfortunately, it's just about that point that Yami, the Golden Darkness, enters the scene with all the subtleness of a supernova, along with an army of possessed high school students! All of which is certain to make Rito's life suck more than a black hole at the family picnic. Unless, of course, a certain semi-demonic princess can apply a little of her Develukean Whoop Ass to exactly that portion of certain other heavenly bodies! 
(Source: Sentai Filmworks)

The second season of To Love-Ru Darkness.

Did Riko Yuuki’s life go to hell in a handbasket when a naked alien princess from the planet Deviluke suddenly appeared in his bathtub and he found himself betrothed into the universe’s most dysfunctional romantic relationship? No, but only because he never got a damned handbasket. Even if the luscious Princess Lala is finally starting to admit her real feelings for her earthling scum significant other, there are so many other things constantly going wrong that Riko’s doing well just to survive. 
 
Whether it’s due to bounty hunters, a defective transporter, body switches, alien skunks, mighty morphing power bathrooms, a sleepover that goes horribly, horribly wrong, or, that worst galactic scourge of all, Valentine’s Day, each day seems determined to prove why you should never, ever, marry a monster from outer space! 
(Source: Sentai Filmworks)

Momo is the younger sister of Lala, the alien princess who has long since been engaged to the human Rito. Although Rito’s heart continues to waver between Lala and his first crush, Haruna, Momo finds herself unable to deny the feelings she has for the hapless human male. Instead of giving up, Momo attempts to surround Rito with a harem of beautiful women, all working towards urging him to marry Lala, become crowned as King, and as a result, be allowed to marry his entire harem—Momo included! 
 
(Source: Seven Seas Entertainment) 
 
Note: Includes the prologue and 22 bonus chapters.

Yuuki Rito is your average high school student–awkward, shy, and hopeless when it comes to confessing his feelings to the girl of his dreams. But one day, an alien princess on the run suddenly appears in his bathtub! When Rito finds himself engaged to the beautiful Lala after a misunderstanding, he becomes embroiled in the chaos of extraterrestrial politics, rival alien suitors, and harem hilarity! The story continues in To Love Ru Darkness, when Lala’s younger sister Momo begins her own machinations to marry Rito…but it can only happen if he is coronated as king of their interstellar empire, which would allow him to marry as many women as he wants! 
 
(Source: Seven Seas Entertainment)

Zastin