The Mentalist series finale will leave fans hoping for an eighth season.

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The CBS series already has fans hoping for an eleventh hour return, and actor Rockmond Dunbar (Agent Abbott) believes the upcoming finale, which will cap off the series' seven season run, will leave the door ajar for a continuation.

"Everything sort of ties up into a nice bow, but it's really loose," Dunbar said of "White Orchids," according to The Hollywood Reporter. "It's one of those things where like, 'Wait a minute, The Mentalist could come back.' Of course, I doubt that it will, but there's definitely that glimmer of hope for some of the fans and for myself as well."

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Set to air as the 13th episode of season 7, "White Orchids" will feature the return of Rigsby (Owain Yeoman) and Van Pelt (Amanda Righetti) as Patrick Jane (Simon Baker) and Lisbon (Robin Tunney) work to track down a serial killer. Like the rest of the season, the finale will have its own set of surprises.

"There are always some twists and turns to keep people interested and wanting to come back and motivated to see the next episode, so always anticipate that," Dunbar told The Hollywood Reporter. "But the consistency of the storylines are there, and I think the fans are going to enjoy it."

Find out more when The Mentalist airs Wednesdays at 8 p.m. ET on CBS. Click the video below to see a preview for the series' next episode, "Little Yellow House."