Up there on the left is Daisuke Ono, voice actor for Barret in the Japanese version of Mega Man Legends 3. To the right is Akemi Kanda, who you may recall is the voice actor for Aero.
Wondering what Barret’s personality is like? Capcom posted two pieces of concept art for Barret to their Legends 3 development room recently, which should give you a pretty good idea:
Capcom describe Barret’s character as “hot-headed, but also funny and cool”. They also posted a few comments from Barret’s anonymous English voice-actor, which you can read over at their blog post.