|Hair Color||White with a few red highlights|
|Age||23 years old|
|Height||170 cm / 5'7"|
|Likes||Beer, money, women|
"A con artist. He tells lies like they're breaths. He changes his appearance and name at each new town."- Game's Description
Theobald Leonhart, also known as Leo, is one of the protagonists of LiEat I. He travels around with the second protagonist, Efina, and changes his appearance in every town he travels to. He has a mysterious past that he doesn't talk about.
In LiEat I, he goes by the alias Leo. He sports white hair with a few red streaks throughout. His eyes are orange in the first game. It is mentioned that he has a scar on his cheek. He wears a long red coat with a purple stripe secured with pairs of silver, diamond shaped buttons on either side down the middle. The sleeves and collar end in white tufts. Underneath he wears a simple, loose dark purple shirt. He is also shown to have a tight, black choker necklace around his neck.
Leo is rather focused on his work and rarely speaks about his personal life. Whenever he meets a new person, he changes his expression and acts very kindly, in order to gain people's trust. However, he'll act naturally in front of people who already know his real self, like his informants and Efi.
He gets annoyed easily, especially by Efi, and her energetic and inquisitive tendencies.
As a con artist, Leo is very skilled as deception and disguise. He changes his appearance and name every time he travels to a different town, and only a few can recognize him. He is also a extremely skilled liar, to the point that Efi cannot manifest his lies. He is also skilled at recognizing if someone is lying without Efi's help, and is capable of deduction, allowing him to work out who is responsible for certain actions.
He is also skilled at fighting, and is capable of wielding and throwing knifes. he can attack lie monsters and people consumed by lies, but only when he is fighting with Efi.
Leo is very dismissive of Efi, often calling her a runt or a brat, is unwilling to spend time playing games with her and mainly interested in the information she can find. However he does care about her to some extent, as he refuses to sell Efi, even though she's worth a lot, and he throws himself in from of Keith Rigfire's spear to protect her in Bad End 2.
They have met in the past. Leo has no major like or dislike for Neil, but does try to avoid him as much as he can. He also uses the captain to gain information.
Leo has no major like or dislike for Brett, but does try to avoid him as much as he can. Due to Brett's dislike of humans, Leo seems to find him more of an annoyance.
Rosalie is an informant that Leo has used in the past. He refers to her as "feathers", and worries for her safety after he discovers the truth behind the town's legend.
Carol is an informant that Leo uses. He refers to her as "the informant with the hat". They have met in the past, and she asked Leo to discover if a bluebird really exists and if he could capture it, although he only obtained one of its feathers.
- Despite beer being listed as one of the things he likes, Efi reveals that he can't handle it well, and gets woozy straight away, and also he doesn't really like spicy foods.
- In the Steam translation, his name is spelled as Theobald Leonheart.
- Theobald's name in the freeware version is most likely a direct (or mis) translation of his original Japanese name, Teobarudo. However, "Theobald" is the correct spelling