Charlie Sheen and Denise Richards' Daughter Sam Looks So Grown Up -- See the Pic!

The 51-year-old actor's 12-year-old daughter is almost as tall as dad!

Charlie Sheen's daughter Sam is growing up right before our eyes!

The former Anger Management star took to Instagram on Thursday to share a rare shot of his 12-year-old daughter, who looks all grown up!

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"Sami: So how was your day dad?" Sheen captioned the cute father-daughter pic.

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Sheen, who also shares 11-year-old Lola with his ex-wife, Denise Richards, seems to spending more time with family lately.

In August, the 51-year-old actor shared a sweet snap of himself, Richards, and their two daughters, which he called "a gaggle of awe sum."

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Meanwhile, Sheen's other ex-wife, Brooke Mueller, has entered rehab after her hospitalization in November.

"She's doing a lot better," Mueller's sister, Sydney Wolofsky, told ET last month, sharing that Mueller would be spending the holidays with her and Sheen's twin boys, Max and Bob.

"Her whole life revolves around the boys… They miss her and really love her," she said. "They know what's going on, and that mom's getting help."

See more in the video below.