He was the last episode character to be introduced, at the 99th episode, though a few other characters was created later (though present temporarily). He was also the last static character if The Monkey King is the same character as Claude. There is an ongoing trend where episodes are reusing characters from previous episodes.
This is likely due to the naming of remaining characters.
The trend of a lack of new characters was temporarily broken with the appearance of Minty's Cake Quest characters and the Hen.
For a long time, it was unknown if animated cutscenes will be introduced afterwards. No further Flash cutscenes were animated, including Peppermint Portal. With Episode 218's release, this trend was broken, for HTML5's case though.
Due to April Fools 2020, almost all episode characters (but eight) have been absent from the game. A few other characters make occasional appearances in events.