Soper, who will take over the role for one week beginning Jan. 24, most recently starred in Noel Coward's Star Quality, which she will reprise on tour in February before appearing as Matron in a new production of the stage comedy Doctor in the House with Robert Powell and Joe Pasquale. She previously appeared at the Menier in Sunday in the Park with George; other recent theatre credits include Lend Me a Tenor (Gielgud) and Marguerite (Theatre Royal Haymarket).
Lawrence, who will play Berthe for one week from Feb. 7, is best known for her TV roles as Manda Best in "EastEnders" and her ongoing participation in the Channel 4 comedy show "Whose Line Is It Anyway?" Other TV credits include "Robin Hood" (BBC), "The Old Curiosity Shop" (ITV), "Fat Friends" and "Absolutely Fabulous." Stage roles include appearances in Acorn Antiques (Theatre Royal, Haymarket) and Frozen at the National Theatre.
Gold will return for the week of Jan. 30 and for the final two weeks of the run, Feb. 14-25.
Also in the cast are Carly Bawden, Harry Hepple, Ian Kelsey, Matt Rawle and Frances Ruffelle with Ben Bunce, Bob Harms, Holly James, Anabel Kutay, Stuart Neal, David McMullan and Kate Tydman.
To book tickets, contact the box office on 020 7378 1713, or visit www.menierchocolatefactory.com for more details.