In tonight's episode of the BBC soap, Glenda is pushed down the stairs by an unknown assailant at her flat - shortly after she has insulted many of the Square's residents at a family gathering.
As Glenda (Glynis Barber) has been having an affair with Peter's father Ian, the teenager is among the list of suspects who have reason to do harm to the feisty blonde - and fans will soon see him leave Walford after Phil Mitchell (Steve McFadden) dramatically accuses him of being the culprit.
However, asked by All About Soap whether Peter really is the perpetrator, Law replied: "He's not strong enough! It's not really in his character, but with all this stuff building up, he just feels backed into a corner and just wants to burst.
"I don't know whether he'd actually have it in him to hurt Glenda so badly, though."
Peter's exit also comes after he is left heartbroken when Whitney Dean (Shona McGarty) dumps him.