|Family||Jessica Kent (wife, deceased), Jonathan Kent (son, deceased), Martha Kent (daughter-in-law), Clark Kent (adopted grandson)|
|Played By||Dean Wray|
Both Martha and Jonathan indicate that the latter's 'hardheadediness' is inherited directly and discernibly from his own father. Like Jonathan, however, he is also a highly compassionate man, with a willingness to stick his neck out for others, as he shows during Jor-El's troubles. He shows a respect for his wife and her judgment which suggests that theirs is a partnership of equals.
In 1945, Hiram was one of the jury members who put Harry Volk in jail for murder.
After Louise McCallum was killed, her accused murderer "Joe" came across Hiram and his wife Jessica at the Kent Farm. Hiram believed in Joe's innocence and helped him get to the Kawatche Caves. As the two departed ways, Hiram told Joe that if he ever needed anything, he knew where to find him.
- Season One: Cool (Mentioned only), Hourglass (Mentioned only), Reaper (Mentioned only)
- Season Three: Relic (flashback only), Legacy (Mentioned only)
- Season Six: Rage (Mentioned only)
- Clark told Jonathan what Hiram told "Joe" and suggested that Jonathan and Martha were chosen by Jor-El to raise him because of the love that he felt at the Kent Farm.
- A cowboy and above all Gene Autry fan, he would have named his son after his hero if his wife hadn't managed to persuade him round to her way of thinking.
- In the comics, Hiram appeared only in pre-Crisis titles and he hasn't been seen since then. His first appearance was in Superboy #77 (1959) and his second and last appearance was in Superboy #113 (1964). In the Modern Age, Jonathan's father was named Sam Kent, who had another son named Harry.