![image](https://comicvine.gamespot.com/a/uploads/square_tiny/11144/111442876/8773778-thydy.jpg)
Dr. Hydro
Dr. Herman Frayne is an ecologist who believes that mankind should return to the sea leading to him becoming the villainous Dr. Hydro.
Name:
Dr. Hydro
Publisher:
Real name:
Dr. Herman Frayne
Aliases:
Birth date:
None
Gender:
Male
Powers:
- Gadgets
- Intellect
- Sub-Mariner
First issue:
![cover](https://comicvine.gamespot.com/a/uploads/original/11144/111442876/8773778-thydy.jpg)
Dr. Hydro was created by Steve Gerber and Winslow Mortimer in 1973 and first appeared in Sub-Mariner # 61.