not any cheatcode i know, but i know a way.
you only need a save editor (best online) and then you can edit the save file, and every Person, Stats, skills, traits, Relation, money etc.
If you start up the game you click on In-game Database and then click on traits, where you can see how everything need to be written in the save file.
Search the character name in the save editor, it is complicated and maybe broke the save file but it's the only way i use and know about, if you get along with it you can creat easy the best slaves and slavers/ all magic user in game.
Example: your character name is (Vih) then you open the save file in the editor press strg+f and search the name , then you will see this.
"key": 33, <--- unit Number
"level": 1,
"first_name": "Vih",
"surname": "Emberash",
"name": "Vih Emberash",
"nickname": "Vih",
"trait_key_map": { <--- unit traits
"dick_large": true, <--- trait
The unit number keep the coding simple, so you can search up the number and change the relation level to everybody.
In the unit traits_key_map you will see every trait your character have like his apperance and skills.
Now you need the database because, if you hover over any icon and left click then you will see something like this: Titanic Dick (key: 'dick_titanic')
Then you only need to edit the traits like this.
"dick_large": true, ---> "dick_titanic": true,
Then download the Save file from the editor and load it in the game.
Enter them with the same punctuation marks as quotation marks and the exclamation mark at the end like in the example, very important otherwise the game can no longer read them!
Only erase the trait name and change it without touching the marks and you will be on the save side.
I know this text is bad written (english is not my native language) and complicated to follow, but this is the best i can explain it, without getting too complicated. with a bit time and try out you will see how the character code is build up and you can change things easy.