Peter Jacobson, Dean Winters Peter Jacobson, Dean Winters

House's Peter Jacobson and Grey's Anatomy's Brooke Smith are set to guest-star in the season finale of Law & Order: SVU, reports. Additionally, Dean Winters (30 Rock) will be back to reprise his Season 1 role.

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The finale features the death of a high-end call girl who works for an escort service owned by Bart Ganzel (Jacobson). In a surprise twist, Winters' Brian Cassidy, a former SVU detective, now runs Ganzel's security team. Playing Ganzel's rival is Smith, who portrayed Dr. Erica Hahn on the ABC medical drama. Outsourced's  Pippa Black and The Killing's Eric Ladin will also appear.

The season finale of Law & Order: SVU airs Wednesday, May 23 on NBC.