Multiple classes for a single character?

[Taco]

Simply put.. Is it allowed? I know it's entirely possible to make one character with their first name and a second character with the last name tacked on (space permitting), but I'm wondering whether this is actually allowed or not.

[Harmonic]

Nope.

[Taco]

Thanks for the speedy response. This topic's no longer necessary, so could someone lock this topic please (if necessary)?