The Challenge has seen many competitors come and go over the years, but some have stood out as fan favorites and fierce competitors. The Challenge season 40 will feature 40 competitors all from different eras of the series. The cast of The Challenge season 40 is the biggest cast in Challenge history.

The Challenge season 40 will be a battle of the eras, bringing together a cast of Challengers from four different eras of the series to compete for a prize and bragging rights in a milestone season. Beginning as The Real World/Road Rules Challenge in 1998, The Challenge has become a staple of reality TV competition. Creating stars from memorable reality TV faces, The Challenge has changed the game for decades. Originally, the show invited stars from The Real World and Road Rules into a brand-new competition to face off, but over the years, its morphed into a different beast.

While The Challenge...