Aubrey Plaza teased fans with a spoiler and preview of "Parks and Recreation" season 6 ahead of the premiere date. Aubrey Plaza posted a picture with Rashida Jones and Tatiana Maslany hanging out as the premiere date approaches.

Tatiana Maslany, the star of "Orphan Black," has signed on for two episodes on "Parks and Recreation," which is NBC's only comedy returning this fall, according to The Hollywood Reporter. Maslany will portray a love interest for Aziz Ansari's character Tom Haverford.

She will make her first appearance in episode 5, but further details regarding her character are being kept under wraps, The Hollywood Reporter notes.

Aubrey Plaza posted a fun picture on Twitter with her fellow "Parks and Recreation" cast members Rashida Jones and Tatiana Maslany on set.

Plaza and Jones are wearing sunglasses, and Plaza and Maslany smile widely into the camera. Plaza, meanwhile, has a serious expression and holds up two fingers. They appear to be in the back of a car, and Maslany seems to be wearing hospital scrubs. Will she play a nurse, like Jones' character Ann?

"WHOOPS!!!" Plaza captioned the photo on her Twitter, The Huffington Post reports, perhaps referring to her revealing that Maslany was on the set of "Parks and Rec."

Jones later retweeted the photo, with the caption, "ARE WE THREE BLACK ORPHAN CLONES?? (yes)"

All the capital letters suggest these girls are super excited about having Maslany on their cast this season.

"Parks and Rec" Season 6 premieres Thursday, Sept. 26 at 8 p.m. ET on NBC.