Game of Thrones' Michelle Fairley Suits Up

Suits Season 3 CastMichelle Fairley‘s take-charge new role stands in stark comparison to her old one.

Fairley will join USA Network’s Suits in its upcoming third season, EW.com reports.

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She will recur as British oil tycoon Ava Hessington, who needs Harvey’s help to fight a lawsuit that endangers her family business. (At right, check out series star Patrick J. Adams’ Instagram shot with his new co-worker.)

Fairley debuts on Suits‘ July 16 season premiere.

SPOILER ALERT: The actress most recently played Lady Catelyn Stark on HBO’s epic fantasy series Game of Thrones, until this past Sunday when her character met a devastating fate.