The Duluth Playhouse board of directors announced Wednesday that Christine Gradl Seitz will retire from her position as executive and artistic director Sept. 30, according to a news release from the playhouse.

Gradl Seitz has been in her position since 2000. Since then, the playhouse has expanded from a single-stage community theater to a three-venue organization, including the newly refurbished NorShor Theatre, The Underground and family theater.

In an email to local theater artists announcing her retirement, Seitz praised what she called “the thriving Twin Ports area arts community.”

“The artists in this community make me so proud to be part of this ever-expanding and exciting arts scene, and I feel very honored to have worked with you all,” she wrote.

The Duluth Playhouse, led by artistic director Amber Burns, presents family-friendly theater with youth actors and adult performers. The Underground, led by Robert Lee, is a 150-seat experimental performance space. Both theaters are located in the Depot.

In May, Phillip Fazio will join the organization as artistic director of NorShor productions. A nationwide search is being conducted to fill the position of executive director.

“Christine was the heart of the NorShor Theatre renovation," board chairperson Patty McNulty wrote in the news release. "The NorShor has transformed the entire historic arts and theater district."