Castle Season 6 spoilers are tiding fans over through the long wait to September. Stana Katic is being sweet and nice to fans to please them through the show's hiatus. Series creator Andrew Marlowe has also issued some Cas-kett teasers for the fans. But production has been delayed due to Nathan Fillion's reportedly ongoing feud with ABC. Will the sixth year of Castle be problematic?

How did Castle himself develop a "feud" with ABC? Nathan Fillion's Rick Castle is almost in every scene of ABC's Castle. So when Nathan asked for a 4-day work week, it couldn't be granted right away. So on July 12 (Friday), Nathan failed to show up for work, worrying fans over production delay. Fans hope this has been completely sorted out by now.

Stana Katic Delights Fans in Group Pic

Stana Katic (Kate Beckett) is "freaking nice and literally a living barbie doll," says a Twitter user who went to see the stars film Castle Season 6 in L.A.

"We saw Stana she stopped by us to sign and take pictures," tweets @dharleensait. The gorgeous actress was up next in filming, but the fans still had a picture with Stana albeit in a group photo. Click through the slideshow to see the Twitter-posted photo by @mariolina18.

Castle Season 6 Spoilers: Andrew Marlowe's Latest Scoop

Andrew Marlowe tells fans the Rick Castle and Kate Beckett (Cas-kett) 'ship will go through important changes. As expected, though, he is quite tight-lipped on details.

"Regardless of her answer, it is going to significantly change their relationship," Marlowe told TV Guide.

Here are what we know so far about Castle Season 6:

1. House's Lisa Edelstein will be in Castle for multiple episodes. Stana Katic's Beckett will be emulating her Fed character.

2. Myko Olivier comes in as Pi, whom Alexis (Molly Quinn) met in her Costa Rica trip. He'll be staying at Castle's apartment.

3. Josh Brolin will reprise his role as Rick's dad in Castle Season 6.

4. A special episode will be shown for the birth of Ryan's (Seamus Weaver) first child.

5. Beckett will give Castle an answer right away. "No wishy-washy "maybe" or "Give me time" from Kate Beckett. In the September 23 premiere of ABC's Castle," writes William Keck of TV Guide.

More Castle Season 6, TV Guide Features:

Castle Season 6 Spoilers (Plenty!) Plus - Stana Katic's Thoughts, New Characters, Cas-kett Wedding and NYPD Replacement? [PHOTOS]
Castle Season 6 Spoilers: Stana Katic's Beckett Faces Off with Lisa Edelstein's Cuddy in Defunct 'House' [PHOTOS]
Revenge Season 3 Spoilers: 'Jesus Christ' Diogo Morgado Saves, Justin Hartley Heats Up the Set? [PHOTOS]

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