Frog
This NPC can be found in Westfall (92), The Steamvault (6), Maraudon (23), Zul'Gurub (17), Hellfire Peninsula (27), Nagrand (19), Terokkar Forest (2), Zangarmarsh (227), Eversong Woods (12), Ghostlands (10), The Slave Pens (6), Dire Maul (3), Elwynn Forest (209) and Duskwood (37).