To the excitement of its fans, ABC's Castle will be returning at the end of the month with its highly anticipated sixth season, which will undoubtedly be featuring a pivotal moment for Caskett.

In a shocking cliffhanger to end season 5. Castle's (Nathan Fillion) proposal to Beckett (Stana Katic) brought the last installment of the program to a close.

Katic recently took to Twitter to ask her loyalists how they felt the tone of the drama series is.

"Curiouser [and] curiouser. If u had to label Castle, what would you label it? Procedural? Comedy? Dramedy? Romantic Comedy?"

The actress also recently gave her take to TV Line on what she thought the strength of a healthy relationship really is.

"Real relationships are not compromised because one person is having success in their career," Katic said.

Creator Andrew Marlowe had dished to TV Guide about the evolution of Castle and Beckett's dynamic, which will inevitably evolve after the marriage proposal.

"Regardless of [Kate's] answer [to Rick's proposal], it is going to significantly change their relationship," he said.

ABC's Castle will make its return with Valkyrie on Monday, September 23. Keep checking back for more of the latest details on the ABC series. A proposal response teaser that follows season 5's cliffhanger can be viewed below.

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Castle, ABC, Television