He could use his Vorcha voice
Oh, my Lord, I just snorted apple pie moonshine out of my nose.
Oh, God, that hurts.
But that was freakin' hilarious! 
Now I'm confused due to the 'white' part.
@____@
So much confusion.
Could be Scribbles???
Ya'll used confuse ray on me and it's effective!
And Solas with Mark Meer's voice would be strraaannnggeeee.
Mostly because I imagine the Mass Effect poop.
"We'll bang, ok?"
Especially if his voice went from savior of the universe to bald elf mage. But it wouldn't be Shepard's voice right?
Everyone is taking the straight/white/guy thing as meaning he wrote something that's the opposite of ALL of those.
Am... I the only one who took it as him just describing the straight/white/guy stereotype *in general* and that it could mean he had to write someone who was not straight OR someone who was not white OR someone who was not a guy (rather than someone who was all three of those not-things)?
That's how I took it. At least, to me it read like it definitely meant he had to write someone who was not into the lady bits for the scene he was writing, since I imagine when he says he wrote something waaaaaaaaaaay out of his comfort zone, that's my assumption.
Example: I am a straight/white/female. I also write. If I had to pick ONE of those three things to write that would put me waaaaaaaaaaaay out of my comfort zone, it would be writing someone who is not straight. That would, to me, have far more No Pants potential than me trying to write someone not white or trying to write a guy.