Sylvia Douyé holds a degree in biology and was a science journalist before she began writing graphic novels. Her first comic series for children, Les Zinzinventeurs, received the Children's Award at the Angoulême International Comics Festival in 2002. She is also the author of the popular French comic series, Marie-Lune.

Paola Antista is an Italian illustrator and comic artist. A graduate of Disney Academy, she began her career illustrating for magazines, educational books, and advertising agencies. She now teaches comic art in middle schools and high schools and is the illustrator of the Cats! graphic novel series.