Margaux Chatelier has been cast as Annalise de Marillac. Annalise is a woman Jamie once had feelings for while he was in France during his soldiering years with Ian.
The ambigious report that gradute of the Royal Conservatiore of Scotland actress Natalie Spence will be playing the second wife??? What this means I couldn't tell you. There is speculation among Outlander fans that she will be Louise de la Tour who becomes friends with Claire. There is no actual word on this being confirmed and it is possible she's just an extra "wife" to one of the noblemen they will meet.
Romann Berrux who has been cast as Fergus and who Diana says is doing a great job in the role. Ferus is a young French pickpocket who is incredibly loyal to the Frasers.
Bonnie Prince Charlie will be played by Andrew Gower. Charles Stuart, the young heir to the exiled Catholic royal dynasty, is plotting his epic return to the throne. You can find out more about Andrew at IMDB.
Rosie Day will be playing Mary Hawkins, the daughter of a minor baronet and the niece of Silas Hawkins. Engaged to a member of the French nobility, Mary, who struggles with a nervous stammer, finds herself being used as a pawn in the power plays of her elders. You can find out more about Rose at IMDB.
Dominique Pinon will portray Master Raymond. A small kindly apothecary, Master Raymond is a mysterious healer with a great deal of knowledge regarding secret matters, both political and occult. Though generally viewed with suspicion by his contemporaries, Master Raymond forms a special bond with Claire. You can find out more about Dominique at IMDB.
Audrey Brisson has joined the second season of Outlander in the role of Sister Angelique. TV Wise reports that this is a guest starring role, but with the potential to reappear in other episodes. Sister Angelique will no doubt be one of the nuns present in the L’Hopital Des Anges in Paris. This is the hospital that Claire begins to volunteer at after Jamie and Claire move there. Sister Angelique first appears in Chapter 12 of Dragonfly in Amber. She is described as short, with a plump features and a pudgy face. I think it is safe to say that she will not fit the physical description of the character."
Robert Cavanah will portray Jared Fraser. Jared is a successful wine merchant (and strong Jacobite). Jamie and Claire will live in his mansion in Paris in Season 2. They will also manage his business while he travels to the West Indies.
Last but not least, Stanley Weber will portray Le Comte St. Germain. A wine merchant and member of the French court, St. Germain is a noble with a reputation for ruthlessness, as well as for dabbling in the occult.