Stephanie Niznik, a peter actress best known for roles on Everwood and Star Trek: Insurrection, died unexpectedly in Encino, California on June 23.
She was 52 years old.
As of this writing, no official causre of death has been listed by Variety, which broke the sad news, or any other outlet.
Niznik rose to prominence due to her role of Nina Feeney, the neighbor of the Brown family and eventual love interest for Dr. Andy Brown (Treat Williams), on Everwood.
She portrayed this character for four seasons and recently returned for the show's 15th anniversary panel at the Television Critics Association's summer press tour in 2017.
It is from this event that we took the photos immediately above and below.
The actress was a native of Bangor, Maine.
She reportedly hoped to become a geneticist prior to graduating from Duke with majors in theater and Russian.
From there, Niznik pursued a masters at Cal Arts and then started acting with roles in programs such as Vanishing Son and Murder She Wrote. These roles marked the beginning of an impressive career on the small screen.
Niznik also appeared on Nash Bridges and Dr. Quinn, Medicine Woman before landing a recurring role on Diagnosis Murder.
Along with her work on Everwood, she enjoyed recurring roles on Life is Wild and made guest appearances on Lost, NCIS and CSI: Miami, some of the highest-rated series of their era.
As mentioned previously, Niznik will likely be best remembered for her extended time on Everwood.
But she also played Trill Starfleet Ensign Kell Perim in the feature film Star Trek: Insurrection, returning to the Star Trek universe to play the Wraith in the Rogue Planet episode of the series Star Trek: Enterprise.
Niznik also stopped by ABC for an important episode of Grey's Anatomy; she was on the backdoor pilot special for spinoff series Private Practice, playing Carol in the fan-favorite Season 3 installment.
She is survived by her mother and stepfather, brother and sister-in-law, her niece and nephews, aunt and uncle and her beloved dogs Nucleus and Jake.
May Stephanie Niznik rest in peace.