He is currently the last episode character to be introduced, at the 99th episode, though a few other characters was created later (though present temporarily). He is also the last static character. There is a trend where episodes are reusing characters from previous episodes.
This is likely due to the naming of remaining characters.
At a current count of 1101 episodes, this trend has maintained for 1002 episodes.
The trend of a lack of new characters was temporarily broken with the appearance of Minty's Cake Quest characters and the Hen.
It is unknown if animated cutscenes or even new pathway shapes will be introduced afterwards.
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.