The former Corrie star, who played waitress Steph Britton in the soap from 2013-2017, donned crushed velvet dress covered in metallic stars.
Tisha flashed her pins in the number and accessorised with a black witch’s hat, manicured nails, and Halloween makeup.
Alan’s child Sienna, who he shares with his ex-wife Lucy-Jo Hudson, matched Tisha in the photo with a similar witch inspired look.
Her costume was customised with creepy spider detailing, which was also added to her cheek in face paint.
In view of his 159,000 followers, Alan simply captioned the post: “Happy Halloween,” alongside a pumpkin emoji.