Exclusive Video: Gotham Stars Discuss Leslie Thompkins' Role

While Gotham has been pretty free with making changes to the comic book source material, few characters have changed more dramatically than Dr. Leslie Thompkins, played in the series by The Flash and Deadpool actress Morena Baccarin.

In the interview, series star Ben McKenzie and Baccarin both talk about the relationship between Detective Jim Gordon and Dr. Thompkins, both professionally and personally.

You can check out the full video below.

The good. The evil. The beginning.

Everyone knows the name Commissioner Gordon. He is one of the crime world's greatest foes, a man whose reputation is synonymous with law and order. But what is known of Gordon's story and his rise from rookie detective to Police Commissioner? What did it take to navigate the multiple layers of corruption that secretly ruled Gotham City, the spawning ground of the world's most iconic villains? And what circumstances created them – the larger-than-life personas who would become Catwoman, The Penguin, The Riddler, Two-Face and The Joker?

GOTHAM is an origin story of the great DC Comics Super-Villains and vigilantes, revealing an entirely new chapter that has never been told. From executive producer/writer Bruno Heller ("The Mentalist," "Rome"), GOTHAM follows one cop's rise through a dangerously corrupt city teetering between good and evil, and chronicles the birth of one of the most popular super heroes of our time.

Gotham returns April 13.