Nina first arrived in Port Charles back in 2014 and she was initially played by Michelle Stafford.
However, at first,Nina was in a coma.
Everyone was shocked when Nina turned up alive, awakened from her coma.

Nina plotted to break up Sam and Silas and even faked needing a wheelchair to gain his sympathy.
Instead, her mother, Madeline, had poisoned her.
Madeline’s excuse for eventually telling Silas that Nina died was to keep him away from her family.

She forced Madeline to help her plot to steal Ava’s unborn child.
Madeline provided Nina with medication that first paralyzed Ava, then induced labor.
Nina didn’t care, and she stole the baby after it was born regardless.

After evading the law, she bumped intoformer serial killer Franco Baldwin(Roger Howarth).
The two had become friendly, so Franco helped Nina and the baby escape to Canada.
However, he sensed that Nina was unbalanced.
He promptly turned around and gave it back to Ava, much to Nina’s shock.
In court, Nina pled temporary insanity and was sent to the Shadybrook mental institution.
The two grew close again and were eventually freed.
But it turned out Silas had done it to use the child’s bone marrow to save Ava.
Nina figured out Ric’s scheme and divorced him.
She was later found kneeling over Silas’s dead body, holding a knife.
Nina was accused of murder, but Franco took the blame so she wouldn’t go to jail.