Jiri Bartunek is a Czech archaeologist and historian who holds a doctorate from Masaryk University in Brno, Czechia. He has lived in the UK, Sweden, and Iceland, and is currently working to popularize history for the public through publications, museum exhibitions, and practical demonstrations such as fencing shows. His interests span the technical, social, military, and eschatological aspects of ancient civilizations. He is based in Czechia.

Tom Velcovsky is a graduate of Audiovisual Production from the Silesian University in Opava, Czech Republic, where he specialized in screenwriting and storyboards. Before switching to children's books and the making of comic strips, he worked in advertising.

Jan Sramek is a visual artist, illustrator and teacher from the Czech Republic. His work has been presented at galleries and festivals all over the world, notably in London, New York, Amsterdam, Seoul, and Beijing. His illustrations for the book That's Metro, Man! were selected for a prestigious exhibition at the Bologna Children's Book Fair in 2020.