Conversation so far:
Did A.R. Gurney ever produce romantic plays?
Love Letters by A. R. Gurney features characters Andrew Makepeace Ladd III and Melissa Gardner, who are childhood friends, both born to wealth and position, and romantically linked.
What other kind of plays did A. R. Gurney write besides romantic plays?
The play The Dining Room by the American playwright A. R. Gurney was a comedy.
What is a patrician upbringing in A. R. Gurney's plays?
A. R. Gurney's plays often explore the theme of declining upper-class WASP (White Anglo-Saxon Protestant) life in contemporary America.

Question: did he ever act in his plays?
Self-contained rewrite: Did A. R. Gurney ever act in his plays?