Pokemon Best Wishes: Here comes the Ginga Bishounen
These 3 are the first gym leaders in Black and White. The green-haired guy in the middle is called Dent (Cilan in the english version), and he will be the 2nd companion of Satoshi (Ash). His seiyuu is Miyano Mamoru, the voice of a well-known Galactic Pretty Boy.
This definitely makes me want to continue watching Best Wishes.