New 'Ghostbusters' Cast Surprises Patients at Children's Hospital -- See the Sweet Pics!

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Leave it to Kristen Wiig, Melissa McCarthy, Kate McKinnon and Leslie Jones to save the day.

The all-female cast of the upcoming Ghostbusters movie just happened to be in the neighborhood, you know, checking out the strangeness when they stopped by a nearby hospital on Saturday.

That's right -- Wiig and McCarthy to the rescue! The Floating Hospital for Children at Tufts Medical Center captured the impromptu visit and posted photos of the foursome posing with some very happy patients.

WATCH: Kristen Wiig Gives Us Our First Look at the All-Female 'Ghostbusters' 

"Patients got a huge surprise today when Ghostbusters stars Melissa McCarthy, Kristen Wiig, Kate McKinnon and Leslie Jones came to visit!" the hospital wrote on Facebook. "Thank you for taking the time out of filming today to put a big smile on our patients faces!" 

Floating Hospital for Children at Tufts Medical Center patients got a huge surprise today when Ghostbusters stars...

Posted by Tufts Medical Center on Saturday, August 1, 2015

The ladies showed up in full Ghostbusters attire (with proton packs and everything!), looking like they'd recently finished zapping a gaggle of ghosts -- and they probably had. McCarthy, McKinnon, Jones and Wiig are filming director Paul Feig's reboot of the 1984 classic in Boston, but that obviously didn't stop them from being good samaritans. During the visit, they mingled with patients and their respective families, snapping pics, flashing smiles and just being awesome. 

Who ya gonna call? These four, obviously.

WATCH: Jennifer Garner Spends Her Day Off Visiting Sick Children at Atlanta Hospital 

Chris Pratt also surprised sick kids while decked out as a famous movie character recently. Check out the cuteness in the video below.