>>34452
They're new characters from the most recent generation of Pokemon games. Pregnant lady is Katy, a Bug-type gym leader. Green haired guy is Brassius, Grass-type leader. Purple haired lady is Tulip, Psychic-type leader. Black haired guy is Larry, Normal type Gym Leader.
Not too sure who the ponytailed blonde is. Arven, maybe? He's one of the player's allies/rivals.