As far as reactions go, we think it's safe to say they're excited.

Having dropped a reported $4 million on the 30-second TV spot for season two of their hit show, we're pretty sure Netflix were hoping for a strong response from viewers to the 'Stranger Things' trailer that aired Sunday night.

What they probably weren't expecting was that the cast would have the same OTT reaction as fans online when watching (or maybe they did, seeing as the parents of Gaten Matarazzo, Noah Schnapp and Finn Wolfhard were waiting with phones up to catch their response).

Judging by their reactions, we're going to go out on a limb and say this is the first time they too have seen footage of the upcoming season. The streaming date of Halloween also seems to come as a surprise to them too.

If you're having a grim Bluesday, this should cheer you up.