Season 7 of "Dexter" just added a dose of "Chuck." Yvonne Strahovski, who played Sarah Walker on the former NBC spy comedy, will be joining Showtime's serial killer drama in a multi-episode arc, the network announced Tuesday.
According to Showtime, Strahovski will play Hannah McKay, "a strong, independent woman with a past that she's struggled to put behind her. As a turn of events leads Miami Metro Homicide to ask for her help in solving some old cases, Dexter works with her and begins to wonder if there's more to this woman than she's professed."
The cast for "Dexter" Season 7 is taking shape. "The Shield" veteran Matt Gerald has been cast to play a blue-collar violent criminal, and "Rome" actor Ray Stevenson has also signed on to play a Russian mob boss.
Production began last week on Season 7 of "Dexter." Showtime renewed the Emmy-nominated thriller for another two seasons last fall.
"Dexter" Season 7 premieres Sun., Sept. 30 at 9 p.m. ET on Showtime.