Spotted Greenwings are relatively small nocturnal dragons. Easily recognizable by the fleshy appendages growing off of their head and rump, they are most commonly seen in forests at night, leaping and soaring from tree to tree. While generally social, spotted greenwings are very quiet and rarely make any sort of vocalization. Their bodies are unusually warm to the touch, though they are unable to breathe fire. Greenwings are voracious feeders and will consume nearly any living thing that they can fit in their mouths.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Merinen might not perform, but he's still an important part of Roaring Lion Productions. He lives in the scaffolding backstage, treating it like an artificial forest, and will occasionally hum snatches of songs to himself as he climbs. Merinen is considered to be a good luck charm, as plays whose music he hums tend to turn out better. For some would-be actors, he's been the reason they stayed—a friendly song in the night just when they needed it the most. One young dragon claims he was something of a vocal coach during his visits to her, but most think she was just making this up for attention. Merinen might be a musical phantom, but he's hardly the legendary Night Musician.