The phrase "lead cast" refers to the main actors or actresses who have the most important or prominent roles in a movie, TV show, or play. They are typically the top-billed performers and play key characters in the story. Full definition
The British nominees competing for this year's # 20,000 prize have produced work including lead castings of the entire contents of the Kentucky Fried Chicken menu, giant full stops made from polystyrene, and Stanley Kubrick jokes written on a café wall. (theguardian.com)
A brilliant mini series by the BBC with a superb pair of leading cast members, The Night Manager is exactly what many of us want in these types of shows: intrigue, suspense, class, strategy and some unknowns. (metacritic.com)
Directed by David Leitch (John Wick and the upcoming Deadpool 2), the action thriller sees Charlize Theron leading the cast as a lethal MI - 6 assassin alongside James McAvoy, John Goodman, Til Schweiger, Eddie Marsan, Sofia Boutella, and Toby Jones; take a look -LSB-...] (flickeringmyth.com)