Actress Stephanie Niznik, best known for playing Treat Williams’ next-door neighbor in the WB drama Everwood, has died. A report in Variety said her death came unexpectedly June 23 in Encino, Calif.

The Maine-born actress, who was a National Merit Scholar and a valedictorian at her high school, once dreamed of becoming a geneticist but chose an acting career instead. She appeared in movies like Exit to Eden and Star Trek: Insurrection but she found her biggest success on the small screen. Niznik showed up in series as diverse as Murder, She Wrote, Dr. Quinn, Medicine Woman, and JAG, before snagging a series regular role in Diagnosis: Murder from 1998-2000. Two years later, she was cast in Greg Berlanti’s drama Everwood as Nina — a role she played for four seasons.

More recently, she appeared in episodes of Lost, NCIS, and CSI: Miami.

Berlanti and fellow Everwood scribe Rina Mimoun released a statement Saturday via social media, calling Niznik a “nurturing mother figure” and an “incredible friend.” The tweet was shared by Williams, who added, “so true.”

For our beloved Stephanie Niznik @GBerlanti #Foreverwood

— Rina Mimoun (@RinaMimoun) July 13, 2019

Variety reports that Niznik was active in children and animal rescue organizations, and also worked with Four Winds Heart-Centered Healing. She is survived by her mother and stepfather; brother and sister-law; her niece and nephews; aunt and uncle; and her dogs Nucleus and Jake.

Related links:

Everwood: An oral history

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