And despite her early start, the 30-year-old still looked fab as she hung out with her male co-stars.
Sharing a photo of herself and the gang enjoying a tea break, Casey looked gorgeous in red as she sported glossy locks and a bright red pout to match.
Alongside her photo, she wrote: "On set filming with the boys! @gmrusso1 @samstrike1894 @kirk_norcross @joshmyers1986 #BondedByBlood2."
The former Celebrity Big Brother star was still smiling despite her early morning wake-up call.
Heading to filming at the crack of dawn, Casey tweeted: "En route to set! Very early start today, till 11:00am! Match sticks at the ready @BondedByBlood2."
Sounds like a nap will definitely be needed this afternoon, then!
Bonded By Blood 2 is a British gangster film based on the book Essex Boys: The New Generation. In the movie Casey not only stars alongside Kirk, but Danny Dyer's daughter Dani and former EastEnders star Sam Strike.
Heading for the big screen instead, Sam announced he was leaving EastEnders last November after playing Johnny Carter (Danny Dyer's onscreen son) for a year on the soap.
He tweeted: "Thanks for all the love this year guys. Means the world. Decided to bow out.
"Couldn't have done it without you all, thanks @bbceastenders. And of course, tremendous love to my Carter family."
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