As of The Fiery Heart, he is dating Jaclyn Terwilliger, Sydney's witch mentor. He mentions that he once dated a woman named Toctulla, an Aztec princess, of whose name he had tattoo of on his thigh. He left her because he was a free bird and she was not. He got the name tattoo changed to "Tactful".
- Malachi wears an eyepatch and tells stories of how he lost his eye. His story changes, but one said that he lost his eye while fighting a moose with nunchucks.
- It is still unknown how he actually lost his eye.
- His eyepatch is on a different eye in The Indigo Spell, which means he probably never even lost his eye.
- He has an arsenal on weapons, including a blow-gun. He said he got the blow-gun from an Amazonian warrior after he fought him.