Can you name all the foes of Batman and Robin? As a bonus, can you give me their real names? And, which bad guy was played by Vincent Price? …just feeling nostalgic!
Thanks, Jinx
I’m just gonna say “Killer Moth” and walk away.
Vinnie was Egghead, the coolest Bat-villain of them all.
Spoiler URL listing villains from the 1960’s TV show (over on the left of the webpage). Type it into the Address window if ya really wanna see it. 
Make sure you get it all in there–it should end with “.htm”.
Question: Is the OP including feature-length movies and comic books, too, or just the TV show?
OK, ones I remember off the top of my head (Comics and TAS, not movies or Adam West series.) (And spellings may be off.):
Two Face: District Attorney Harvey Dent
Riddler: Edward Nigma
Catwoman: Selina Kyle
Joker: Given name unknown.
Scarecrow: Dr Johnathan Crane
Mr Freeze: Dr Viktor Freis
Harley Quinn: Harlene Quinsel (WTF? Harley Quinn is a perfectly normal name itself! Moreso than Harlene Quinsel, in fact!)
Penguin: <Something posh sounding> Chesterfield III
Not sure if Bane’s real name ever came up, can’t remember Poison Ivy’s, Killer Croc’s, Mad Hatter’s or any of the dozens of others that I can’t even remember their nom-de-crime.
Bane: NFN, NMI.
Poison Ivy: Pamela Isley.
Croc: None comes to mind.
Mad Hatter: Jervis Tetch.
It’s possible that Croc, like Bane and Joker has never had his real name mentioned.
(Now that you mention it, mentions of Hatter’s name are quite easily bubbling to the top of my head. Oddly I still don’t remember ever hearing Ivy’s real name. Though I’m sure I have. Odd that.)
Another I remembered from TAS: The Clock King: Temple Fugit.
One of my old favorites was the Calendar Man… a fairly ridiculous villain who made brief appearances in Detective Comics starting in the late 1950’s. I was delighted when Jeph Loeb brought him back for an important role in “The Long Halloween.”
Not sure of his real name, though.
Ah, I just cheated and looked it up.
Calendar Man = Julian Day
What was Calendar Man’s gimmick?
What? Nobody remembered Clayface? Matt Hagan? My favorite villain!
No no.
Cobblepot not Chesterfield
And Ivy’s name is Pamela Isley
Who could forget Tallulah Bankhead as The Black Widow?
Oswald Cobblepot. And Clayface was just a(thankfully non-recurring much) villain brought in for the TV show.
There are also many one-time enemies. Wasn’t there a guy in a snake costume running around?
Quibble: Clayface II
Clayface ! appeared about 10 (?) years earlier and was a digruntled actor/quick-change artist.
Clayface III was a guy who had to wear a containment suit ('cause he was kinda melting) and could melt people with his touch.
Clavface IV was some boring chick with the same powers as Clayface II and I think (hope) she’s dead.
Fenris
I was really scratching my head over that last villain - The Webmaster. Scrolled up & down through the “bio” trying to figure out why I couldn’t remember that one.
He committed crimes based on months (“Gosh, Batman! The September Sapphire is on display at the Gotham Museum! Wouldn’t that be a likely target for the Calendar Man?”
“It could be, boy-wonder!” ) or days of the week (see above, but replace the word “september” with “saturday”) or holidays ( see above, but replace “september” with “Saturnalia”)
Plus, Walt Simonson did a really cool redesign of his costume in the late '70s.
Anyway, other Batman Villians from the comic
Dr Double-X (could duplicate, a la Duo Damsel)
The Composite Superman (the entire Legion made statues of themselves via a special machine. They gave these statues to the Superman Museum. Lighting hit the statues and gave the janitor all the powers of the entire Legion of Super-Heroes. It also turned the janitor green ('cause of Braniac 5). It apparently also took away his design sense 'cause his costume was 1/2 (the left?) of a Superman costume and 1/2 a Batman costume. It was a really dumb outfit. another picture
Professor Hugo Strange
Kite-Man
King “Croc” (aka Killer Croc)
Nocturna
Night Slayer
Y’know, if my parents named me “Jervis Tetch”, “Harleen Quinsel”, or “Oswald Cobblepot”, I think I’d turn out evil, too.
A few more spring to mind:
The Monk (old 40’s villain)
The Red Hood (later revealed to be the Joker)
Lex Luthor (technically a Superman villain, but DC has been slowly adapting him as a bat-nemesis)
Bat-Mite (arguably more of a nuisance than a villain)
Scarface & The Ventriloquist
Ra’s Al Ghul. Nobody’s mentioned him yet. Shame. It’s worth throwing in Ubu, your quintessential Arab henchman, and daughter Talia, who walks the knife-edge between love for Batman and devotion to daddy.
What Fenris said above, plus a disturbing knowledge of the significance of dates. This was played up in “The Long Halloween,” as he helped Batman catch the Holiday killer in a Hannibal Lecter-esque advisory role.