steeldragons
Steeliest of the dragons
"Some Guy" happened to be Gary Gygax.
It was in response to the popular David Carradine show "Kung Fu" that was going on in the 70s.
To show that, even then, catering to the popular culture was an element/asset to D&D play/development.
"Soulblade"? Please, anyone see the 90's iteration of the X-Men's character Psylocke? Before that, the relatively passive telepath.
"Shadow-dancers...or -casters" or whatever its called rising out of numerous DC and/or Marvel heroes.
The sudden rise/introduction of "Assassin" as a preferable character class due to the immense success of "Assassin's Creed" video game.
Vampires and vampire hunter PCs rising out of "Van Helsing" (the film) and "Buffy" (the tv series moreso than the film).
"Half-demon" and/or "redeemed demon/vampire" archetype arose from Angel the tv series.
The need for Lycanthropic AND vampire PCs resulting, somewhat immediately, after the Underworld films...and continues today via Twilight and True Blood.
D&D draws it's "classes" nowadays (and by "nowadays", I mean the last 10 years or more), no less so than the original introduction of "Monk", from popular culture moreso than fictional/traditional mythic "archetype".
And I am sorry about that.
The days of "A Barbarian being Conan-esque" or a wizard/magic-user being a "Merlin-esque" archetype are far behind us.
Does that make it ok? Not necessarily in my book. But it makes it understandable....Assassin, Monk, half-vampire, non-blood thirsty werewolf...what have you.
As for the asked about archetypes/classes. Everyone's said it. Monk didn't mesh well with the originally presented classes. Assassin is an unnecessary distinction from "thief/rogue".
Have fun and happy gaming, no matter what classes you include.
--SD