That Time I Got Reincarnated as a Slime , also known as Tensei Shitara Suraimu Datta Ken aka Slime Tensei is written by Fuse. Slime Tensei is a light fantasy novel and is packed with comedy, action, and light-heartedness.
This Isekai anime is perfect for comedy and action lovers. That Time I Got Reincarnated as a Slime characters, being the most important part of a story, characterize the story to make it interesting.
Isekai anime deliver cheerful emotions and are exciting and enjoyable. Slime Tensei is a story about Saturo Mikami, a 37-year-old man who works in the corporate world and leads a mundane life.
While conversing with a colleague, he gets stabbed by an assailant, and in his last grain of consciousness, he hears a mysterious voice that recites a series of commands.
Furthermore, he couldn’t make sense of it. Afterward, he wakes up in another world as a slime, thus revealing himself as the protagonist in the fantasy world.
Rimuru makes friends who are loyal to him because of his good-naturedness. As the series That Time I Got Reincarnated as a Slime reveals many more characters, the plot, therefore, becomes much more interesting and dramatic.
1. Rimuru Tempest as a Slime

Rimuru Tempest is the protagonist of That Time I Got Reincarnated as a Slime. He is a slime who possesses the powers to transform and imitate anything and anyone.
Additionally, he has a unique skill- Predator, that helps him attain powers of the objects that he devours. Altogether that makes one of the strongest That Time I Got Reincarnated as a Slime Character. Along with a good sense of humour, he is smart and a leader.
He also attracts women like a flame to a moth, not only because he’s a cute slime, but he is strong and is a leading figure for the creatures who need guidance. He’s their saviour.
2. Veldora Tempest the Storm Dragon

Veldora is the Storm Dragon, who was chained deep inside the mountain. He’s shy but aggressive, and hence can be called a tsundere in the words of Japanese.
In the first place, he seems like a loner. He’s been alone for a long time and so when Satoru Mikami reincarnated as a slime, he named him Rimuru Tempest and befriended him. Without delay, they worked on saving their world.
3. Benimaru

Benimaru is an ogre prince. His village was destroyed by the orcs, as a result, Benimaru along with his ogre friends decided to take revenge on them. He became loyal to Rimuru by seeking his help to take down the orcs. He is a good fighter and given the title “Samurai General.”
4. Gabiru

Gabiru is the son of the chieftain of the lizardmen. He’s a comical character who has subordinates who are loyal to him and listen to him. The entire group is comical, which can get some good laughs out of the viewers. His primary goal is to become the leader of the world and so he challenges Rimuru to fight against him.
5. Shion

Shion is part of the orcs. She takes on the role of an assistant to Rimuru, essentially helping him out in any way she can.
She’s also a terrible cook and made fun of throughout the series by everyone around her. Eating her food is equal to a “punishment” of sorts. Thus motivating Rimuru’s subjects to perform well. She’s also a very powerful fighter.
6. Rigurd

Rigurd is a goblin. He’s stoic most of the time but is quite open and expressive while interacting with Rimuru. He is the first subordinate of Rimuru. He became the Goblin King appointed by Rimuru.
7. Ranga

Ranga is the leader of the Tempest Wolf Clan and is a loyal subordinate to Rimuru. He has traits as that of a dog, loyal, affectionate, and faithful. He would do anything, even sacrifice his own life for Rimuru. Ranga is also a powerful fighter and helps Rimuru a great deal during battles.
8. Milim Nava

Milim is one of the demon lords, also known as the “Destroyer”. She is strong and a prodigy, who is undefeatable. She is short and childish as well as smart and bold. She is also mischievous and causes trouble whenever she meets Rimuru.
9. Diablo

Diablo is also a demon known as “Noir”. He serves Rimuru to know the “truth” of the world. He is Rimuru’s strongest subordinate. In addition to that, he started the Black Numbers, a group of demons, a fighting force that consists of Rimuru’s strongest fighters.
They are trained by Diablo, who is one of the strongest fighting That Time I Got Reincarnated as a Slime Characters .
10. Treyni

Treyni is a beautiful dyrad. Dyrads protect the Great Forest of Jura. She forms an association, the Jura-Tempest Federation with Rimuru. She can manipulate the power of nature and is also a very strong character. She warns Rimuru of the Orc disaster that was bound to arrive sooner or later.