"Day 38. A supposed rumor about a Dunder-Mifflin takeover of Oscorp?" Webb tweeted with a link to a picture of a dapper-looking Novak.
Also read: Chris Cooper Cast as Green Goblin in 'Amazing Spider-Man' Sequel
Webb has been busy tweeting various cryptic images from the production's set since filming began in February. TheWrap has reached out to Sony Pictures for more details on which character Novak will be playing in the film.
Novak, who plays Ryan Howard on NBC's "Office," joins a number of recognizable names already confirmed to star in the sequel to 2012's "The Amazing Spider-Man." Chris Cooper has been cast as Norman Osborn, the businessman alter-ego of villain Green Goblin, while Paul Giamatti will portray the Rhino, Jamie Foxx is Electro and Dane DeHaan ("Chronicle") stars as Harry Osborn — a character who eventually opposes Spider-Man as the Green Goblin, too.
Andrew Garfield, who returns as the titular superhero, will have his hands full more than one woman. Emma Stone returns as Gwen Stacey, while Shailene Woodley ("The Descendants") will complicate his love life as Mary Jane Watson. "Like Crazy" star Felicity Jones has also been cast as an unknown character.
"Amazing Spider-Man 2" is due out in theaters May 2, 2014.