Thomas Snow

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

Biography
The man was a doctor. At some point, he married fellow scientist Carla Tannhauser and they had a daughter, Caitlin Snow. The man was very close to his daughter and they would watch old holiday movies together at Christmas on snowy nights.

At some point when Caitlin was a child, the man took her out for a ride on her bicycle. However, Caitlin fell off her bike in front of an approaching car and the man rushed to her aid. Upon seeing his daughter's transformation, he tried to prevent Caitlin from seeing her reflection.

The man eventually began suffering from multiple sclerosis, though he often tried to hide his symptoms from his family, not wanting them to worry. Carla tried to cure her husband as he fought the disease for years. However, he apparently died from ALS, much to Caitlin and Carla's heartache.

After the man's supposed death, Carla buried herself in her work in an attempt to cope with the pain, neglecting Caitlin in the process. As a result, Caitlin and Carla became estranged from one another for years.

In May 2018, Ralph Dibny discovered that Cameron Makhent, the judge who signed the man's death certificate, didn't exist, casting doubts on the credibility of his death. Cisco used his vision powers on Caitlin and the death certificate to discover who forged it, and Caitlin saw her mother signing it.

Personality
The man was a very loving, supportive husband and father. He encouraged Caitlin's interest in science and always pushed her to be the best she could be.

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Season 5
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