Welcome to ThunderCats Lair’s comprehensive, detailed and illustrated guide to the world of the ThunderCats! Although still in production, our aspiration is that this guide will eventually cover every character, weapon, vehicle and location in the original ThunderCats animated series. Hopefully if you have any questions about anything in the ThunderCat universe, you will be able to find it here.

Each item of this encyclopedia has a hand drawn illustration created by our resident artists Kyle Lambert and Wilycub and a profile compiled by the experts here at ThunderCats.Org. If you would like to provide feedback for this encyclopedia please email wilycub@thundercatslair.org

Champions of the Code of Thundera, the ThunderCats and their allies battle to defend Third Earth and New Thundera from evil. From the mighty ThunderCats to the gentle Berbils, they all have a role to play in the fight against Mumm-Ra, the Mutants and the Lunataks.

The ThunderCats face evil in all of its forms. Mumm-Ra, the Mutants, the Lunataks and many more fight to destroy the code of Thundera.

As the ThunderCats explore Third Earth and New Thundera, they must utilise a variety of land and air vehicles to cover ground, and to aid them in their battles with the forces of evil.

As well as being home to a diverse population of humanoids and creatures, Third Earth also features many fantastic locations, from the beautiful to the terrifying.