This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. One who attends the theater.

n. One who attends a performance at a theater, who goes to a theater.

n. someone who attends the theater

"PESCA: Matthews is exactly the kind of theatergoer, which is to say usually a non-theatergoer, who will make or break this production."

looker    watcher    spectator    viewer    witness   

first-nighter    groundling