January 2006 Newtype USA

From voice actress Mitsuki Saiga (she does Wolfram's voice)

Wolfram's the bratty demon with the face of an angel, but that's just 
fine with his voice actress, Mitsuki Saiga. "Considering how many 
strange demons there are, why shouldn't there be a selfish cherub for 
everyone to dote on?" she laughs. "I admit he's quiet a handful for his 
brothers and Yuri. I just make sure to remember what makes him tick, 
and try to have fun. He's cool in a lot of ways." So what's the story 
with Episode 18, when Wolfram confronts Yuri about his feelings? "He's 
head over heels for Yuri. Coming from him 'wimp' is an affectionate 
term! I just want to get the feel of the character right, the 'seflish 
brat that everyone loves'"says Saiga. From where we stand, she doesn't 
need to worry, because it comes through perfectly. We're looking 
forward to seeing more of Wolfram's heroics.

About the next episode previews at the end of each episode:

. . . the next-episode previews written by show director Junji 
Nishimura and rattled off at super speed by Yuri's voice actors 
Takahiro Sakurai (Japanese) and Yuri Lowenthal (English). According 
to inside sources, the previews were a battleground for Nishimura 
and Sakurai, with the director constantly piling on more text than 
anyone could say in the few seconds allotted. Sakurai boldly rose to 
meet each challenge!