Leader and commander of the Vegan Empire’s attack on Planet Earth. 

Duke Fleed is a survivor of the Fleed Planet who is escaped to the Earth, onboard a mysterious "spaceship", where is raised by Dr. Umon as his adoptive son, and known as Daisuke Umon. Years after his arrival, he's faced with the threat of King Vega and his army, who want to conquer the Earth. With his friends Koji and Hikaru (and later his younger sister Maria Grace), Duke decides to fight back using his best weapon - the almighty Grendizer.

__Birth name:__ Koukichi Tomita (富田 耕吉)
__Hobbies:__ reading, traveling
__Skills & Abilities:__ table tennis (national competition level)

[Profile (Pro BAOBAB)](http://pro-baobab.jp/men/tomita_k/index.html) | [Wiki (en)](https://en.wikipedia.org/wiki/Kōsei_Tomita) | [Wiki (jp)](https://ja.wikipedia.org/wiki/富田耕生)

Following a devastating attack by Vega's forces on planet Fleed, Duke Fleed, and Grendizer escaped to Earth. When he got there, Dr. Amon, the head of the Space Research Center, adopted him and gave him the name Daisuke. While they were working side by side in the center on a quest to find out what strange objects appeared in the city's sky! They were surprised by an attack that jolted Daisuke's memory.

[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)

Suddenly, a UAP (Unidentified Aerial Phenomenon) of the Vega Alliance appeared on Earth. Humanity is helpless in the face of Vega's overwhelming military might, but then "Mazinger Z" operated by Kouji Kabuto, and "Grendizer" piloted by Duke Fleed, appear on the scene. Why did Duke Fleed, the prince of the planet Fleed, come to earth? What kind of life did he spend in his homeland?
 
 Note:The story of "The Inception" opens with a prequel that is not told in the TV anime.

Gandal