Okay, this might be a bit premature, since you haven't even started playing with this character yet, but let me put on my anagram hat and see what I can come up with.
Dorian doesn't happen to like snacking on dessicated insects by any chance, does he? I only ask because...
DORIAN THE RED = A DRIED HORNET
Of course, maybe he likes capturing insects to eat himself. Possibly even bees...
DORIAN THE RED = DARE HIT DRONE
It's a pity that his parents got killed like that. Especially his elven mother.
DORIAN THE RED = HER DEAD INTRO
What color is your PC's hair?
DORIAN THE RED = REDHEAD NITRO
And Wee Jas, you're one of the ones in Doc Midnight's group that's into anime, aren't you? Just be careful that you don't let your outside interests carry over to your new PC, or you could put him into a few embarrassing situations...
DORIAN THE RED = ERR ODD HENTAI
Of course, perhaps your PC will enjoy such things, maybe even going as far as to attain a "doctorate" of sorts...
DORIAN THE RED = DR. HENTAI-DOER
What are his stats? If you give him a really low charisma he could get caught up in looting and rioting...
DORIAN THE RED = NERD-HEAD RIOT
Or, maybe he just likes paying dorky women for sexual favors...
DORIAN THE RED = TRIED A NERD HO
If it worked out, and he got some...
DORIAN THE RED = RIDE A HOT NERD
On the other hand, perhaps he'd rather go out with relatives of the actor who plays "Worf"...
DORIAN THE RED = HE TRIED A DORN
Or, if he plays his cards right, maybe he could hook up with one of those aquatic babes...
DORIAN THE RED = RAD HOT NEREID
Maybe you'll give him a low Intelligence instead, and when he can't figure his way out of a jam, you can just demand that the DM tell you what to do...
DORIAN THE RED = ORDERED A HINT
If he's really good looking, but incredibly stupid...
DORIAN THE RED = A HOT DIRE NERD
What kind of armor will he wear? You could try one of those leather chaps deals with his butt hanging out...
DORIAN THE RED = DON'T HIDE REAR
Or stitch little bits of metal all over your clothes...
DORIAN THE RED = THREADED IRON
Have you thought about taking the Leadership feat later on? Maybe you could get an interesting cohort...
DORIAN THE RED = ED, A THIN DERRO
Or he could pay a dire rat to be his friend...
DORIAN THE RED = HIRED A RODENT
What if he sort of named his unusual riding mount after Dartan?
DORIAN THE RED = DARTO, DIRE HEN
Hey, he's a forest bandit, right? Maybe he lives in a cave, where he keeps the loot he's stolen from tea merchants...
DORIAN THE RED = HORRID TEA DEN
If he steals enough fine clothes and other fopperies, he could pass himself off as a nobleman...
DORIAN THE RED = DANDIER OTHER
Of course, his nickname might preclude him from being paid to join any adventuring bands...
DORIAN THE RED = DON'T HIRE A RED
If he can't make it as an adventurer, perhaps he could reply to advertisements looking for someone to assist rhinoceroses out of the high branches...
DORIAN THE RED = TREED RHINO AD
Or he could be instrumental in preventing frogs and toads from taking over the world...
DORIAN THE RED = TOAD HINDERER
Maybe he could get a job as an exterminator, specializing in half-fiend rodents...
DORIAN THE RED = DIE, HORNED RAT!
Maybe he could steal items hidden in the chairs of royalty...
DORIAN THE RED = RAIDED THRONE
Or give Santa's Reindeer some needed assistance...
DORIAN THE RED = AID NORTH DEER
If he really needed money, he could get work as a "fluffer" in a book company...
DORIAN THE RED = HARDEN EDITOR
If he did get that last job, you know what his boss would always say...
DORIAN THE RED = "DO IT, HARDENER!"
Or maybe he'd just keep trying to get that opera job...
DORIAN THE RED = DIEHARD TENOR
Or become a drug dealer...
DORIAN THE RED = TRADED HEROIN
Too bad this won't be a PC for a d20 Modern game. He could keep submitting applications to various motorcycle dealerships...
DORIAN THE RED = RETRIED HONDA
Of course, in a d20 Modern game, he might not really be what he seems...
DORIAN THE RED = ANDROID THREE
Of course, you live in the same state as Dr. Midnight, right? Maybe all of this nonsense has something to do with that tiny state you guys live in.
DORIAN THE RED = A RHODE I. TREND
Okay, that's enough for now. My brain hurts!
Johnathan