Religion: indeterminate
Name: Mr. Harrison
Classification:
supporting character
Publisher(s): 
First Appearance: Detective Comics (vol. 1) #341 (July 1965): "The Joker's Comedy Capers"
Creators: John Broome, Carmine Infantino, Joe Giella
Number of Appearances: 1
Enemy of: The Joker
Employer: U.S. Postal Service
Occupation: postal worker
Gender: male
Detective Comics (vol. 1) #341 (July 1965): "The Joker's Comedy Capers" (3-panel cameo)
Suggested links for further research about this character:
- https://www.comics.org/issue/19314/
- http://comicbookdb.com/issue.php?ID=92108