One ancestor of mine was in the SAS during WWII, but was executed for looting while in France.
My mother's side, my great grandfather was a bare knuckle boxer and a member of the IRA.
My uncle wrote a book of horror stories when he was 15 and tried to get it published. But they refused him because they were too gory for a teenager to be writing. Another uncle wrote a few episodes of Shameless when he was the script editor.