Many characters in DC have alliterative names, such as Billy Batson, Lex Luthor. and Wally West.
Is there a complete list of DC characters whose first and last names begin with the same letter?
Yes, this is a list question, but it has a limited scope: If you're finding an unreasonable amount of names then we can limit this to just main and secondary characters while excluding random extras like Lucy Lane.
Inspired by Shamelessly stolen from Which Marvel characters have alliterative names?
Given DC's long history, there's no feasable way to compile a complete list of all the charatcers with alliterative names. Taken largely from this List of human superheroes in DC Comics and many helpful comments from Wad Cheber, I have put together what can serve as a decent starting point for DC characters with alliterative names.
Characters:
Group names:
Plus loads and loads of random people from the List of DC Comics characters:
...
From Why Are There So Many Double Initials in Comic Books?
What is the L. L. connection for Superman?
A remarkably large number of characters in the comics have the initials L. L. Most notable are Lex Luthor, Lois Lane, Lana Lang, and Lori Lemaris. A rumor says that these names were chosen because Joe Shuster's first girlfriend had the initials L. L.
Too many to count, let alone name in an answer. To highlight my point, I will restrict myself to just SOME entities with alliterative names that appear in Batman media (and only those not mentioned in the excellent previous answer at the time I wrote this answer).
Note: Red Caio has my permission to use anything he likes from my answer to supplement his own; I am not trying to supplant his answer, I am merely trying to illustrate how impossible it would be to list every alliterative name in DC history.
Here's a new list of more than 1400 alliterative characters from Marvel and DC https://github.com/mroughan/AlephZeroHeroesData/blob/master/Comics/alli_data3_names.csv
Description of the source of the list is here: https://aleph-zero-heroes.netlify.com/posts/alliteration/
Turns out DC uses alliterative names more than Marvel, but not much.
Here's some examples from the list (trying to avoid those mentioned earlier)
Superman, L.L.
Supporting Characters:
Villains and "it's complicated"
Can it be relevant that many DC heroes started in the forties and that Stan Lee also was of the same generation? Was alliterative names a more common thing in the past? – sigber Apr 25 '19 at 09:03