The cast of Severance gave New York City's commuters a rush hour they'll never forget. On Tuesday, the cast of the hit Apple TV+ series promoted the show's second season with a live viral stunt at New York City's Grand Central Terminal.

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).

In a first of its kind promotion for Apple TV+, the cast of "Severance" appeared in character, working in a pop-up glass office at Grand Central Terminal.

If you missed your train at Grand Central Station, blame the cast of “Severance.” The show’s stars, Adam Scott, Zach Cherry, Patricia Arquette, Britt Lower, and Tramell Tillman, shocked subway riders on Tuesday when they were put on display inside a glass cube with workstations that are identical to the setups that Lumon employees use in the series.

Grand Central Terminal works as a fitting location for this pop-up thematically as it is where commuters change between their home and work lives on the way to and from work. Photo Property of Bell Works The real-life location of the Lumon Technologies office is the former Bell Labs building in Holmdel,

At Grand Central Terminal, Apple TV+ set up a glass cube of sorts with a set of Lumon Industries-style desks, straight out of the Macrodata Refinement floor. Originally, the computers were staffed by actors in suits pretending to do, well, whatever people at Lumon Industries actually do. (What is Macrodata Refinement for again?)

"Severance" stars, Adam Scott, Britt Lower and others surprised fans with a pop-up ahead of the second season's debut on Jan. 17. Watch Party Newsletter Best new movies Top TV Oprah's Favorite Things

Severence Season 2’s infamous viral cast stunt at Grand Central Terminal seemed like any other pop-up, but turns out it is series canon.

Ben Stiller and the cast of 'Severance' takeover the terminal in their office cubicle pop-ups to promote season 2.

Ahead of the season two premiere of hit TV show Severance, Apple is marketing the show with a fun Severance pop-up at the Grand Central Terminal

Adam Scott reflected on the viral 'Severance' marketing stunt held in New York City, joking that no one 'peed for 3 hours' while in the glass cubicle.

As viral marketing stunts go, there’s a somewhat meta feel to cramming the cast of Severance into a glass box at New York City’s Grand Central Station. Adam Scott, Patricia Arquette, Britt Lower, Zach Cherry, and Tramell Tillman were among those who ...