Outlander season 4 spoilers, plot news: Downton Abbey alum joins as villain; more of Brianna and Roger MacKenzie next season

Get ready Outlander fans, the Droughtlander is nearly over as the premiere of season 4 is just a few months away now and the cast members are already doing promo for it. 

The fourth season is based on Diana Gabaldon's book in the Outlander series, Drums of Autumn, which sees Claire and Jamie building a new life for themselves far away from Scotland, all the way over in the Americas in fact. 

Jamie (Sam Heughan) and Claire (Caitriona Balfe) in "Outlander" season 3.Starz

And there will be some changes coming to the cast line-up in season 4. One of the new faces next season is Ed Speleers, who will play a villain called Steven Bonnet. 

Speleers is known for his previous role in Downton Abbey and will be stirring up the plot with his despicable character - if he's anything like how he is in Gabaldon's book.

The book paints Bonnet as a vile person indeed, someone who has engaged in piracy and who rapes Brianna, Jamie and Claire's daughter.

Jamie actually saved Bonnet from being hanged and it remains to be seen how that decision impacts the events that make it into the TV version of the book in the next season.

Speleers won't be the only new face in the show next season as Irish actress and Orphan Black alum Maria Doyle Kennedy will be coming on board the cast too.

She's set to play Jamie's Aunt Jocasta, who owns a plantation in Jamaica that Jamie and Claire will spend some time at.

And fans who fell in love with Brianna, and the Reverend Wakefield's adopted son, Roger MacKenzie, during the last season are in for a treat as it appears there will be more of them next season.

"They actually come into the story in a much bigger way in season four," executive producer Ron Moore told Radio Times

Caitriona Balfe, who plays Claire, has also opened up about what state of mind her character will be in when she goes to the Americas. 

She reveals that it will be quite a culture shock for her to meet Native Americans and see a world where slavery was real. 

"When she left America it was at the height of the civil rights movement and so it's a very interesting thing to have her come at the inception of the United States of America, as we know it today," she told Radio Times.

"It's very interesting to watch her wrap her mind around how to be a pioneer but also knowing what she knows and having the respect she does for the Native American culture.  It definitely isn't without its problems and issues and having her figure out how to be a respectful pioneer I suppose. So yeah it's an interesting thing to play."

Outlander season 4 will premiere on Starz in November but the exact date has not been announced yet.