Gerdur and Hod are his parents, and Ralof is his uncle. He owns a dog named Stump, and is best friends with Dorthe, despite the fact that her family sides with the Imperials. Frodnar and Dorthe will sometimes talk about dressing up Stump as a frostbite spider. They can be seen sitting together on a bench outside the Sleeping Giant Inn. They like to play with Frodnar's dog, Stump, and play other games such as tag. Sometimes, they will even ask the Dragonborn to play with them.