The glamour model showed off her 34GG breasts in a lacy figure-hugging black celebrity dresses uk with a plunging neckline.
Casey, 32, accessorised with a black clutch and wore her hair in a half-up, half-down style.
The former Celebrity Big Brother star took to social media to express her excitement before the glam event, tweeting: “Can’t wait for the @PrideofSport awards this evening. Such a fantastic night and an honour to be attending #PrideofSport.
The annual awards celebrate unsung heroes in sport, as well as raising awareness about sport and encouraging people to be more active.
Also at the ceremony was former Towie star Lucy Mecklenburgh, Hollyoaks actress Stephanie Waring and Strictly Come Dancing semi-finalist Claudia Fragapane.
Lucy and Claudia both went for red and gold, with Lucy in a lacy red halterneck midi-dress teamed with a gold clutch and gold heels.
She also wore red and gold jewellery, and sported a berry red manicure.
Nineteen-year-old gymnast Claudia, who competed in the Rio Olympics last summer, wore a short, long-sleeved dress in a deeper shade, with a sheer floral embroidered overlay.
She too added a gold clutch and gold heels, as well as some deep red lipstick to match her dress.
The athlete was accompanied on the red carpet by her Strictly Come Dancing partner AJ Pritchard, in a smart navy suit with a black bow tie.
Like Casey, Stephanie opted for a long black celebrity style dresses, with a semi-sheer sequined bodice and a sweeping train.
She added some colour to the look with bright red lipstick and a matching manicure, and wore her hair in an elegant updo.
Meanwhile Megan McKenna and Vogue Williams both turned up in frilly blue numbers.
Irish model Vogue went for a powdery shade, wearing a short slip with a sheer ruffle-trimmed overlay.
Towie star Megan chose a midnight tone, in a satiny knee-length frock with an oversized vertical ruffle down one side.
She showed up with her on-again off-again boyfriend Pete Wicks, who wore a black suit over a black turtleneck.