Zachary Quinto Zachary Quinto

Zachary Quinto will appear on at least one episode of Girls next season, Entertainment Weekly reports.

The Star Trek actor was spotted filming with Lena Dunham in Brooklyn on Wednesday, wearing matching smocks that read: "Ask me my name." No details about his character or how many episode he will appear in have been released.

Crazy, sexy, cruel: True Blood's craziest moments

Girls' fourth season will also feature guest stars Gillian Jacobs and Jason Ritter.

Watch This Tonight: See why Treehouse Masters is today's editors' pick

Watch This Tonight: Treehouse Masters