Castle Season 6 spoilers have so far revealed a lot of details to keep Cas-kett shippers excited about the show's next chapter. Stana Katic is helping via Twitter to tide the viewers over until the show's sixth season premiere in September. Tweeting with her is House's Cuddy, Lisa Edelstein.

Stana and Lisa seem to have bonded while filming quite easily. The two hot and sassy celebs seem to be BFFs now. (Start the slideshow to see some of the behind-the-scenes photos the Castle actors are tweeting.)

Solving crimes with @stana_katic !! pic.twitter.com/HR8c0qczcC

— Lisa Edelstein (@LisaEdelstein) July 16, 2013

Aside from sending out Castle tweets, Stana Katic also dishes her thoughts on how her character Kate Beckett would decide about Rick Castle's proposal. Stana's chemistry with Nathan Fillion (Castle) is so powerful, that Cas-kett fans are almost certain there will be a wedding next season. But Stana is keeping it real.

"I think she is going to search deep into her heart and I think she is going to consider all her possibilities," Stana told E! in an interview.

In separate interviews in the past, Stana expressed her eagerness to have Kate and Rick in a relationship. She has always believed Castle and Beckett can grow together as an official couple. This time, Stana is saying Beckett should take the Washington job. For Stana, Rick has the resources to travel constantly so distance should not be a problem for them.

Castle Season 6 Spoilers: 'Firefly' Traveler Meets 'Dr Who?'

In one of the latest Castle Season 6 spoilers, it's been revealed that a self-proclaimed "time traveller" will have an encounter with NYPD. Fans know that Castle naturally takes conspiracies, pop myth, and phenomenon seriously. It is very likely that Castle will be thrilled to investigate this time traveller. For geek TV fans, it will be like a Firefly and Dr Who encounter. This reportedly happens on Episode 5.

Castle Season 6 premiere is scheduled on Sept. 23 (Monday) via ABC in the U.S.

VIDEO: Castle Season 6 Trailer (Fan-Made)

Here's a fan-made trailer for Castle Season 6. YouTube user Casticted posted this soon after the Season 5 finale aired in May.

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