The Most Dramatic TV Show Cast Changes of All Time

It’s fairly common for television shows to lose or gain cast members throughout the run, and this is usually not such a big deal. But every once in a while, a cast change occurs that dramatically impacts the show forever. Typically, the impact is a negative one. However, it’s not unheard of for a show to add or lose cast members, only to actually improve.

Here’s a look at some instances where cast changes dramatically affected a show, either positively or negatively, leading up to the most dramatic instance ever. We’re going to focus specifically on examples where cast members left or arrived on a show all at once; most of the original cast of Grey’s Anatomy gradually leaving the show over many years, for example, wouldn’t count.

15. Once Upon a Time

Ginnifer Goodwin and Josh Dallas getting married on Once Upon a Time, in a church in front of a bishop

Ginnifer Goodwin as Snow White and Josh Dallas as Prince Charming on Once Upon a Time | ABC

  • Six main cast members left at the end of the sixth season.

Many fans of Once Upon a Time already felt like the show was going downhill by the end of Season 6. Then, it was announced that Jennifer Morrison, Ginnifer Goodwin, Rebecca Mader, Josh Dallas, Jared S. Gilmore and Emilie de Ravin would all be leaving the show as regulars. Morrison played the show’s lead character.

For Season 7, some new actors were brought in, including Dania Ramirez and Gabrielle Anwar. But it wasn’t enough to save the show, as Once Upon a Time‘s seventh season would wind up being its last.

Next: This show lost a main cast member right away.

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