|First Appearance||I'm an Adult Now|
|Last Appearance||The Journey|
|Appeared In||13 Episodes|
Charlie Marks was a detective working for the police. Through this she ran into Toby.
Charlie walks into St. Luke's Hospital to investigate a crash victim named Anna Sokur. Unable to get information out of her, Charlie leaves and runs into the paramedic, Toby Logan who saved her from the car. Toby asks her if there was a child in the car, and Charlie says no. Throughout the Season Toby becomes close to Charlie, he tells her his secret at first she is upset feeling he is violating people but eventually she learns to understand and trust him and they begin to work together on cases.
In The Journey, Charlie looks into the person who is looking for Toby. Toby later calls her for help, and she comes to his aid, getting shot as a result. She later dies in the hospital.