Underlab Chara and Stand-in Chara are different characters although they are both called uncle (by different Elys and Arno) and they share some basic personality traits in common.
So here’s the character sheet that gives a more complete concept of him. Thank Sharky for having the discussion with me about his background ◤*´∀`◥
HugleTale Origins takes place after 7 loops of RESETs and Genocide Route. Sans convinced Frisk to erase everything which they brought them back from Timeline 0.
A few years after… Elys, who lives with her mother, Frisk and her stepfather, Kris, together after Arno’s death, two years ago. On Elys’s 7th birthday, Frisk gave her a blue flower and an old journal which is her father’s journal. She met a skeleton and became friends with them. 5 years later, Elys have her hopes to see her brother, Arno, attempting to go to the Mt. Ebbott. But things were unexpected for her along the way…
