Yes, sort of. Laharl, Flonne, Etna, and Prinny can be in Classic Dungeon, but you have to make them.
Nippon Ichi’s retro dungeon game has a character creator just like 3D Dot Game Heroes. Screenshots demonstrating the feature show what Laharl and his cohorts look like as less detailed sprites. Players can create and save up to 64 custom characters in Classic Dungeon. However, you only control one character at a time. The other characters play a supporting role by protecting the main character from traps.
Don’t want to make an original hero or put Prier in another game? Classic Dungeon has ten selectable characters with their own storyline to play with. Each character’s journey begins when they step through a door to another world. Some say treasure lies beyond it, others romance, and other others say there is a toilet.
Classic Dungeon comes out in Japan on February 18.