(Warning: This post contains spoilers for Thursday’s new episode of HBO Max’s “Gossip Girl.”)

Upper East Siders who thought that last week’s intro of a pre-teen Milo Sparks was the best that HBO Max’s “Gossip Girl” could do in the way of references to the Og series are going to have their tights knocked off by the quintet of cameos on Thursday’s episode.

That’s mainly because one of them is the actual return of fan-favorite character Nelly Yuki (Yin Chang), and the other four appearances come via incredibly meta fabrications of The CW series’ leading couples: Blair Waldorf (played by Leighton Meester) and Chuck Bass (Ed Westwick), and Serena van der Woodsen (Blake Lively) and Dan Humphrey (Penn Badgley).

On the newly released Episode 5 of HBO Max’s “Gossip Girl”, titled “Hope Sinks,” Chang makes a cameo as Nelly Yuki, the frenemy of Blair...