Conversation so far:
What is the origin of Pierrot?
Pierrot's origins among the Italian players in France are most unambiguously traced to Molière's character, the lovelorn peasant Pierrot, in Don Juan, or The Stone Guest (1665).
Was Pierrot a liked character?
The naive and appealing Pierrot became tremendously popular in French pantomimes.
What French play did Pierrot first appear in?
Pierrot's origins among the Italian players in France are most unambiguously traced to Molière's character, the lovelorn peasant Pierrot, in Don Juan, or The Stone Guest (1665).
In Don Juan, or The Stone Guest was Pierrot an antagonist?
Pierrot was a lovelorn peasant and a second zanni, standing on the periphery of action, in Don Juan, or The Stone Guest.

Question: What was the next play Pierrot appeared in?
Self-contained rewrite: What was the next play Pierrot appeared in after Don Juan, or The Stone Guest?