Kaley Cuoco Shares a Kittenish Moment With Johnny Galecki in ‘Big Bang Theory’ Halloween Tease (Photo)

Looks like the star of the hit CBS sitcom will be raising the bar for the show’s final Halloween episode

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Kaley Cuoco had a treat for “Big Bang Theory” fans on Thursday, sharing a glimpse of what’s to come on this season’s Halloween episode.

Cuoco also shared a throwback photo from the series’ maiden Halloween episode, which featured her looking more kittenish than usual with her co-star Johnny Galecki.

In an Instagram post on Thursday, Cuoco shared then-and-now images of herself with Galecki, with the “then” image featuring Cuoco in cat-ears and collar, and Galecki looking like he just stepped out of a J.R.R. Tolkien book.

“From a Season 1 kitty kissing a hobbit, to a Season 12 bar maid married to Inspector Gadget,” Cuoco wrote, “don’t miss and all NEW @bigbangtheory_cbs Halloween episode tonight!”

Alas, this will be the last October dress-up for Cuoco, Galecki and the gang — on-screen, anyway — as it was announced earlier this year that the CBS sitcom would end its run after its current 12th season.

Way to scare up interest for the series’ final Halloween episode.

See Cuoco’s “Boo!”-ya moment below.