|Portrayed by||Olivia Hardt|
|First appearance||Red John's Friends|
|Last appearance||Red John's Friends|
|Family|| Mother: Vanna Clooney
Father: George Renfrew Half-brothers: Jared Renfrew, Gardner Renfrew)
Undine Kopecki is the murder victim in Red John's Friends. She was found dead in a bed with Jared Renfrew. They blamed Jared for killing her and he went to jail. Her mother, Vanna Clooney who changed her name from Mariska Kopecki to Vanna after Jared's trial, was paid for keeping silence in their relationship. Mrs. Renfrew (Jared´s mother), had Undine´s blood to prove that she was the one who murdered Undine Kopecki, she was trying to teach his son a lesson.