I had an idea yesterday, so let’s see how you like it. Below are sequences from ten classic BD series in which a well-known character is about to first appear. How many can you guess? (hint: these appear alphabetically by character name)
1. 
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8. 
9. 
10. 
EDIT: And here are the answers: https://lemm.ee/post/33519501
Herbert of Craftiwich, yes!
Okay, thanks for the note about Monstres. I may have missed or forgotten his appearance there.
It’s basically a cameo, he appears for like 3 panels at most. The group knocks at the dungeon’s door and he’s the one who greets them.