Thomas Snow

An unnamed man was a husband of Dr. Carla Tannhauser and a father of Caitlin Snow.

Biography
Caitlin's father suffered from multiple sclerosis and despite fighting it for years with his wide, Dr. Carla Tannhauser trying to cure him. Eventually, he died, much to heartache of his wife and daughter. As Carla tried to cope with a tragedy by burying herself in the work, she and Caitlin have estranged from one another.

Behind-the-scenes

 * While it may be presumed that his surname was "Snow" it is still debatable and was not confirmed.