Max Brown (Michael Summerton) was in the cast of the Crossroads revival in 2001, Crossroads (2001). He played the character of Mark Russell.
Here Helena Bonham Carter adds to her impressive string of portrayals of interesting 20th Century women. Previously she was Princess Margaret, Elizabeth Taylor, and Mrs. Lee Harvey Oswald.
Augustus Prew (Tony Adams) and Chloe Harris (Susan Hanson) both previously appeared in the TV show, The Village (2013) playing George Allingham and Agnes Hankin respectively.