All It Cost Her

All It Cost Her is the sixteenth and final episode of Season Four and 78th episode of Reign. It also serves as the series finale.

Plot

SERIES FINALE — Mary makes a decision that will change the course of history — forever shaping the fate of her nation, her crown, and her newborn son. Mary’s perilous move for her survival causes the stunning realization that perhaps she is not the only one who may not survive. Meanwhile, Elizabeth steadies herself for war and will become the instigator in Mary’s demise while later realizing she and Mary might be more similar than either thought.

Cast

Main Cast Adelaide Kane as Mary Stuart Celina Sinden as Greer Megan Follows as Catherine de' Medici Rachel Skarsten as Elizabeth I Will Kemp as Lord Darnley Adam Croasdell as Lord Bothwell Dan Jeannotte as James Stuart

Recurring Cast Craig Parker as Stéphane Narcisse Rose Williams as Claude Spencer MacPherson as Charles Jonathan Goad as John Knox Megan Hutchings as Jane Guest Cast Steve Byers as Archduke Ferdinand Special Guest Toby Regbo as Francis

Soundtrack

• Lumineers: My Eyes

Gallery

Videos

Reign All It Cost Her... Trailer The CW

Trivia

• The final afterlife sequence was shot before Toby Regbo departed from the show.
• Torrance Coombs was shooting Still Star-Crossed in Spain and was unable to return for the finale.