Define 'gray guy', there are lots of special characters in Diamond
in diamond and pearl you find him in Eternacity
find clowns in jublife city then talk to poketech guy
No, you have to get them from Pearl.
in any Pokemon center you will find the green guy. only after you have recived a mystery gift
One place is in Jubilife City. The other is in Solecean Town, next to the Pokemon Center.
happiny
You find a old amber underground (really rare) and get the guy at the mining museum to turn it into a pokemon.
go to iron island and find the guy who you walk around with. at the end he gives you an egg. hmm???? what's in it?
Happiny
He is the Daycare Guy- he takes care of your Pokemon for a small fee
you do not find one in Pokemon diamond/pearl. you have to transfer it from Pokemon ranger, or use the action replay.
You have to go to this guy in Pokemon centre and he will ask a question and say no and he will give u a pokephone and then go to proffeser oak and your mum.