*Warning: This episode contains spoilers for Season Four of *Poldark.

Debbie Horsfield, the executive producer and sole writer of MASTERPIECE’s Poldark, is ready for the fifth and final season of her series. After the drama and sorrow of the series’ fourth season, she offers some hopeful hints about the story still to come.

*Warning: This episode contains spoilers for Episode Eight of Season Four of *Poldark.

Elizabeth Warleggan, formerly Poldark and née Chynoweth, is far from the most beloved character on *Poldark. *Her shifting affections, wayward alliances and confusing emotional center could drive even the most devoted fan of the series to hold Elizabeth at a distance. But actor Heida Reed has always seen Elizabeth as a fundamentally good person, with the same flaws that any of us may try to hide. Reed offers her defense in a new interview.

*Warning: This episode contains spoilers for Episode Seven of Season Three of *The Durrells in Corfu.

The dashingly charming Spiros Halikiopoulos is based on a real-life friend of the actual Durrell family during their time on the island of Corfu. It's a big help for the cast and viewers alike that actor Alexis Georgoulis finds charm to spare in his portrayal of the unofficial mayor of the island. In an exclusive interview, Georgoulis offers a special behind-the-scenes look at his work on The Durrells in Corfu.

For almost 40 years, the MASTERPIECE Mystery! title sequence has offered viewers an ominous glimpse into the dark unknown. It's a vision made real by the masterful work of illustrator and author Edward Gorey, and his fictional affiliation with the criminal world continues in a special mystery-themed exhibit at the Edward Gorey House in Yarmouth Port, MA. In a special bonus Halloween episode of MASTERPIECE Studio, producer Nick Andersen visits the Edward Gorey House to learn more about the man behind Mystery!'s uncommonly deadly masonry. Edward Gorey House curator Gregory Hischak offers his insight.

*Warning: This episode contains spoilers for Episode Five of Season Four of *Poldark.

In lemon silks and too-tight breeches, the Reverend Osborne Whitworth is the gaudiest member of Poldark’s core cast. With extravagant tastes and a limited budget, the Reverend turns to darker quarters to fulfill his incessant appetites. Actor Christian Brassington, who put on more than 35 pounds to play the hefty Ossie, used careful voicework to find his place in the character — along with a diet of more than 3,500 calories per day. Hear the true story behind one of Poldark’s most reprehensible characters here.

*Warning: This episode contains spoilers for Episode Four of Season Four of *Poldark.

While nobody in Cornwall seems to necessarily enjoy the company of one George Warleggan, even fewer appreciate his nasty uncle, Cary. As the sneering devil on George’s shoulder, Cary pushes George to be his worst self. So it’s a special treat to hear the care and thought that actor Pip Torrens puts into his icy portrayal of Cary Warleggan. He joins us to talk wigs, Cornish accents and how it feels to play an out-and-out bad guy.

*Warning: This episode contains spoilers for Episode Two of Season Four of *Poldark.

Josh Whitehouse plays the dashing Lt. Hugh Armitage with an eye on the opportunity for capital ‘R’ Romance. But his character’s loyalties — and divided affections — heighten the stakes for the young actor, and often leave him searching for new motivations. In a new interview, Whitehouse talks Demelza, sand dunes, and more.

*Warning: This episode contains spoilers for Episode One of Season Four of *Poldark.

Debbie Horsfield is the only writer of every episode of MASTERPIECE’s Poldark, so she definitely knows what’s on the horizon in the series’ fourth season. Secrets, lies and parliamentary politics come to Cornwall in a big way this season. Horsfield — who is also one of the series' executive producers — offers a sneak preview of the surprises still to come, and reveals why Aidan Turner was always the only actor she would cast as Ross.

In celebration of the 100th episode of MASTERPIECE Studio, we bring some of our favorite moments from our conversations with MASTERPIECE’s actors and creative talents. From Downton Abbey to Unforgotten and everything in between, we’re delighted to share highlights — including some as-of-yet unheard extras! — from our first 100 episodes. Here’s to the next 100!

*Warning: This episode contains spoilers for Season Four of *Grantchester.

The beloved MASTERPIECE Mystery! series, Grantchester, is set to return to your screens in summer 2019. In the upcoming fourth season of the show, lead actor James Norton — and his character, the Rev. Sidney Chambers — is set to leave the idyllic Cambridgeshire village. Taking his place in the Grantchester parish is actor Tom Brittney, who will play the Rev. Will Davenport, an affable, energetic new arrival on the village green. In an exclusive interview with MASTERPIECE Studio, *Grantchester *creator Daisy Coulam reveals what to expect in the upcoming fourth season, and what fans have to look forward to with their new parish priest.