The pop-up began when a large glass box appeared in Grand Central's Vanderbilt Hall, containing a replica of the four-seated desk from Lumon's Macrodata Refinement department. Hired actors playing Lumon employees sat at their desks, doing Lumon things (by which I mean, sorting numbers while not having a clue what said numbers mean).

C ommuters rushing through Grand Central Station on Tuesday were treated to a curious sight: A glass cube filled with actors in business casual, miming the mundane motions of offi

Cast members Adam Scott, Patricia Arquette, Britt Lower, Zach Cherry, and Tramell Tillman brought Lumon Industries to life by performing inside of a glass box, overseen by the series’ director Ben Stiller. Rush hour today should be interesting. #Severance https://t.co/5MhYPxDrhG

Adam Scott, Britt Lower and Zach Cherry all appeared as their 'Severance' characters for the pop-art. Ben Stiller was on hand for pictures.

Executive producer and director Ben Stiller shared content of the performance art installation to his social media

Apple TV+ put the cast of 'Severance,' including Adan Scott and Patricia Arquette, in a glass box at Grand Central Station to promote Season 2.

Ben Stiller, who directs the series, shared photo and video from the scene on Twitter/X — series stars Adam Scott, Britt Lower and Zach Cherry appeared in character inside a glass-walled office at Lumon Industries.

The promotional stunt comes ahead of the highly anticipated release of new episodes. Here's how and when to tune in.