Dr. Marlena Evans is a fictional character from the long-running soap opera Days of Our Lives. She is portrayed as a psychiatrist who often helps other characters navigate their emotional and psychological challenges. Marlena is known for her intelligence, compassion, and strong moral compass. Throughout the series, Dr. Evans has been involved in various dramatic storylines, including her relationships with other characters like John Black and her struggles against villains such as The Devil. Her character has become iconic, representing resilience and the importance of mental health in the show's narrative.