Sheridan Smith wows in a skintight semi-sheer mini dress as she joins James Norton at her West End show Opening Night afterparty

Sheridan Smith put on a racy display in a semi-sheer black mini dress as she celebrated her West End performance in the Opening Night on Tuesday. Happy Valley actor James Norton was seen congratulating Sheridan, shortly after she was joined by the her co-stars including Amy Lennox and writer Rufus Wainwright. Sheridan Smith, 42, put on a racy display in a semi-sheer black mini dress as she celebrated her West End performance in the Opening Night on Tuesday Happy Valley actor James Norton was seen congratulating Sheridan, shortly after she was joined by the her co-stars including Amy Lennox and writer Rufus Wainwright Sheridan stars as functioning alcoholic actress Myrtle Gordon in the new musical - which is based on the 1977 drama film starring Gena Rowlands. The actress flashed her toned torso in the cut-out style ensemble and elevated her toned legs with black platform high-heels The icon was all smiles as she arrived at the afterparty at The Ham Yard Hotel to cheers to her incredible performance - which went down a hit with critics A host of celebrities attended the press night performance at The Gielgud Theatre to support Sheridan in the musical and joined her in celebrating afterwards Sheridan teamed her looked with a quirky tasseled blazer James and Sheridan couldn't wipe the smiles off their faces as they posed for a photo Sheridan posed arm-in-arm with her co-star Benjamin Walker as they celebrated their magnificent performance Nicola Hughes, Amy Lennox, Shira Haas, Rufus Wainwright, Sheridan Smith and Loudon Wainwright III pictured L-R The cast of Opening Night gathered for a photo Sheridan Smith looked delighted as she celebrated at the curtain call of her brand new musical Opening Night in London on Tuesday Actress Sheridan, 42, who plays a Broadway legend Myrtle Gordon who struggles with alcoholism, stumbles on the streets outside the theatre during her performance Her dressing room, which she calls her 'shrine', is littered with pictures of her three-year-old son Billy and it's where she recuperates after performing her main drunk scene, which she'll improvise each night, that is so physically demanding she joked about needing to use shin pads.