'Stranger Things' Cast Proves How Little They Know About Their Show in Netflix Tudum Trivia

It's like they weren't even there!

The Stranger Things cast reunited for Tudum: A Netflix Global Fan Event, but apparently, they left their trivia skills at home. 

Those in attendance on the virtual Tudum stage on Saturday included the iconic actors behind several fan-favorite Stranger Things charactersMillie Bobby Brown, Sadie Sink, Finn Wolfhard, Caleb McLaughlin, Gaten MatarazzoPriah FergusonJoseph Quinn, David Harbour and Joe Keery

The cast of the popular sci-fi series kicked off their segment of Saturday's event by competing in a trivia contest with questions about their show submitted by fans—and by the looks of it, some of the actors might need to brush up on their Stranger Things knowledge. 

They started off strong with a question about which ear Dacre Montgomery's character, Billy Hargrove, wears his earring, to which McLaughlin quickly provided the right answer: his left ear. 

"What is the password to enter Will's Castle Byers?" another fan asked, causing the actors to struggle for a bit before Matarazzo eventually came up with the correct answer: Radagast.

"What movie do the kids sneak into in Season 3, Episode 1?" someone else asked. 

"Oh, I got to know this; I'm the one who let 'em in," Keery, who plays Steve Harrington in the series, said in response, adding that "they must be sneaking into a horror movie." 

Quinn—who doesn't even appear on the show until Season 4—chimed in with the correct answer, which was 1985's Day of the Dead

But things started to go downhill when trickier questions came in, including the exact number of days Mike and Eleven go without seeing each other at the beginning of Season 4, which Wolfhard answered incorrectly. Then, no one could devise the correct phrasing for the secret code that Steve and Robin (Maya Hawke) decipher in Season 3. 

"Those lines—in my ear, out the other," Keery quipped. 

The game eventually led into a newly released blooper reel from Season 4, which showed a series of never-before-seen moments on the Stranger Things set.

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