The bearded hunk visited The Wolf Connection sanctuary outside Los Angeles to get into character as a werewolf for an upcoming project and became a big fan of the organisation.
His wife, Lisa Bonet, already had a wolf at home and so Momoa thought it would be a good idea to add another mixed-breed.
The actor says, "I've got eight-foot cages around my property. It's like Guantanamo (Bay detention camp) at my house, but it's all safe and it keeps people away.
"They're really good with the kids and they're really good with my wife, but they just don't like me that much."