Trudy Monk – Monk

Trudy was the deceased wife of Adrian Monk who managed to have a role in all eight seasons through flashbacks. Adrian’s attempt to solve the case of her murder was the show’s longest-running plot arc, as her death left him devastated.

Stellina Rusich made it two seasons as Trudy before she was replaced by Melora Hardin. Hardin held the role through the season eight finale, although yet another actress portrayed a younger Trudy in a flashback, too.