Many superheroes and their associates have surnames that are also common given names. This is almost as common as the Alliterative Name, and, in fact, many heroes qualify in both categories. This is a side-effect of the American habit of using common last names as first names - most British readers would not recognize most of these surnames as first names.
This can make a Last Name Basis to be difficult to realize at first.
Jay Garrick as well, and Wally West might count, although the only West that leaps to mind is the guy fromHeroes. With Bart, at least, it really only makes sense when you realize that his full first name is actually a Patronymic (it's still very rare as a first name, though, apparently because people can't be bothered with saying anything quadrisyllabic).
Peter Parker, though "Parker" has only recently become common as a given name.
Charles Xavier (although this is pronounced differently to the first name, which is generally pronounced "zavv-ee-ay" rather than "ex-ay-vee-er"; of course, the last name is also generally pronounced this way, but Middle America wouldn't have noticed it started with an X). The pronunciation is actually more slippery than this, as it has changed since the time of St. Francis Xavier (Which is pronounced Zay-Vee-Er, by the by). Javier is a phonetic respelling of the name in modern Spanish. However, the Portuguese pronounce the name with a sh sound.
Ann Marie was the main character of the 1960s show That Girl and actually complained about her name at times.
Jimmy James, "the man so nice they named him twice," in NewsRadio.
Also Dave Nelson, Matthew Brock, Max Louis, and Jimmy's Arch-Enemy Johnny Johnson.
In Phoenix Wright: Ace Attorney: Justice for All, Max Galactica's real name is revealed to be Billy Bob Johns. Nick hangs a lampshade on it in one inner monologue. "Yikes! The poor guy's got three first names! I guess that is pretty odd."
There are more than a few pro-wrestlers that fit here: Steve Austin, Simon Dean, Chris Harris, Trevor Murdoch, Mark Henry, Matt Morgan, Nick & Matt & Malachi Jackson, Kip James, Kelly Kelly, Donovan Morgan, Ricky Marvin, Brian Christopher, Shane Douglas, Dave Taylor, Chuck Taylor (no relation), Vin Gerard, Jerry Lynn, Shelton Benjamin, Joey Ryan. Shawn Michaels, Stevie Richards, Davey Richards (no relation), Christopher Daniels, Eddie Edwards, Jimmy Jacobs, Jack Evans, Erick Stevens and Petey Williams come close. Mickie James is a female wrestler with two traditionally male names, Alex Shelley a male wrestler with two female names. Simon Dean is actually named after wrestler Dean Malenko, whose real name is Dean Simon.
On a recent episode of TNA Impact, the Main Event Mafia took over the show and made two referees fight Booker T. The referees' names were Rudy Charles and Andrew Thomas, which ring announcer Scott Steiner pointed out during introductions.
Daniel Bryan...whose real name is Bryan Danielson.
From The Mortal Instruments series, Jace, whose full name is Jonathan Christopher Wayland. We think. It's really only the last name that's a point of debate, so whether it's Wayland, Morgenstern, Lightwood, or Herondale, he's still an example.
From Muv-LuvTotal Eclipse side story, we have Rick Sven.
Madoka Kaname, Sayaka Miki, Hitomi Shizuki, Mami Tomoe, Homura Akemi, and Kyouko Sakura. Enough of them to count as Theme Naming. Note that Hitomi and Homura are somewhat of a special case; Hitomi isn't an especially important character ('Shizuki' is not a common first name), and Homura Akemi, who is definitely important, is closer to having her names reversed than having two first names ('Homura' is even more uncommon than 'Shizuki', and if someone does use it as a first name, they're usually male).
In Life With Louie, it's pointed out that the bullies in the show always seem to have two first names, such as Craig Erik, Paul George, and the worst of them all, Glen Glenn.
[Note: All the examples in this entry so far have been situations in which people have given names to characters. In that spirit, please limit entries here to people who have given themselves names (stage names, pen names, pseudonyms, etc.) consisting of two first names. Many people have a first name as a family name in real life, but this section should be reserved for people who have made an intentional choice to do so.]
Jon Stewart from The Daily Show. Inevitable, since Stewart is a showbiz adaptation of his middle name. He was born Jonathan Stuart Leibowitz.
He even makes jokes about it:
"Tonight's guest, Congressman Ron Paul, a proud member, with me, of the Two First Names Club. We, uh, we meet every Thursday for cocktails with Ron Jeremy and Barney Frank."