A representative for the production confirmed to Playbill.com that Osnes recently filmed an episode of the crime drama, which is set to air in October. Osnes also tweeted a photograph of herself on set.
Osnes' Bonnie & Clyde co-star, Tony Award nominee Jeremy Jordan, was recently announced to guest star on "Elementary." He will play Joey Castoro, the son of the surgical patient who died in Joan Watson's ( Lucy Liu) care. Jordan is also slated to appear in an October episode.
"Elementary" will return to CBS Sept. 26 at 10 PM ET. Visit CBS.com/Shows/Elementary.