Main Characters
![Dr. Laszlo Kreizler](https://static.tvmaze.com/uploads/images/medium_portrait/142/357454.jpg)
Dr. Laszlo Kreizler
18 main appearances![John Moore](https://static.tvmaze.com/uploads/images/medium_portrait/142/357455.jpg)
John Moore
18 main appearances![Sara Howard](https://static.tvmaze.com/uploads/images/medium_portrait/142/357456.jpg)
Sara Howard
18 main appearances![DS Marcus Isaacson](https://static.tvmaze.com/uploads/images/medium_portrait/144/360965.jpg)
DS Marcus Isaacson
18 main appearances![DS Lucius Isaacson](https://static.tvmaze.com/uploads/images/medium_portrait/144/361202.jpg)
DS Lucius Isaacson
18 main appearances![Cyrus Montrose](https://static.tvmaze.com/uploads/images/medium_portrait/265/664475.jpg)
Cyrus Montrose
17 main appearances![Stevie Taggert](https://static.tvmaze.com/uploads/images/medium_portrait/157/393137.jpg)
Stevie Taggert
10 main appearances![Theodore Roosevelt](https://static.tvmaze.com/uploads/images/medium_portrait/144/360963.jpg)
Theodore Roosevelt
10 main appearances![Mary Palmer](https://static.tvmaze.com/uploads/images/medium_portrait/146/365169.jpg)
Mary Palmer
8 main appearances![Libby Hatch](https://static.tvmaze.com/uploads/images/medium_portrait/266/666166.jpg)
Libby Hatch
8 main appearances![Bitsy Sussman](https://static.tvmaze.com/uploads/images/medium_portrait/265/664476.jpg)