|Game||Tales of the World: Radiant Mythology|
|Japanese Voice Actor||Daisuke Sakaguchi|
|English Voice Actor||Steve Staley|
Mormo is very knowledgeable about the world and about Descenders in general. He often speaks his mind about subjects but is rather carefree, enjoying life as it is. He carries some sadness with him as he failed his own world, but he is determined to make it up by saving Terresia.
Mormo is the Descender of Yaoon, though he failed to protect his world, and he comes to Terresia to fight the Devourer. Although Mormo talks with a masculine voice most of the time, he states that he has no gender when talking to Arche Klein after asking what he was. He also makes the point that on his home world, Yaoon, people there are naturally nonviolent and sedate, and that the people do not have an actual government, but they all "just sort of hang around." Mormo is very proud about the stripes on his back, as he says in a conversation with an Ad Libitum member. He is a genuinely good friend and worries about Kannono and the Protagonist when there is trouble.
Mormo first awakens the Protagonist upon his creation from the World Tree. As a fellow Descender, he becomes the Protagonist's main companion through the story and acts as the Protagonist's mouth, speaking for him. Joining Ad Libitum with the Protagonist, he forges strong friendships with all those he comes into contact with, though he has no stronger bond than with his partner, the Protagonist.
Though kind and carefree, Mormo carries sadness within him, due to his failure to protect this world. While exploring the Lavacleft, he comes across a familiar smell and becomes depressed, as the smell is from Yaoon and reminds him of his past and his failure.
When the Protagonist defeats Widdershin and saves Terresia, the World Tree bears fruit and gives life to new worlds. Mormo finds his own among the seeds and, thankful, says goodbye to his partner to return to his world.
Protagonist - The Protagonist and Mormo are close partners, agreeing in many opinions and almost never fighting.
Kanonno - Mormo and Kanonno share a bond much like the Protagonist and her. Beginning as travel companions, they become very close friends, and Mormo always sticks up for her.