Louise Lombard Louise Lombard

Adalind may have another blonde to contend with on Grimm.

CSI alum Louise Lombard will guest-star this fall on Grimm, TVGuide.com has learned exclusively. She will appear in at least the first three episodes of Season 4.

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The British actress will play Elizabeth Lascelles, a mysterious woman connected to the royal families. Does this mean that she'll go head to head with Adalind (Claire Coffee)? When last we left our favorite Hexenbiest, she was heading back to Europe to retrieve her baby, whom she believed the royals kidnapped. Of course, we know that Prince Viktor (Alexis Denisof) lied about having her baby, who is actually with Nick's (David Giuntoli) mom.

Lombard is best known for playing the recurring character Sofia Curtis, who was promoted to deputy chief, on several seasons of CSI. She also appeared on NCIS: LA and Lifetime's post-apocalyptic drama series The Lottery.

How do you think Elizabeth fits into this whole mess?

Grimm returns on Friday, Oct. 24 at 9/8c on NBC.

Check out Claire Coffee's Watchlist below: