Amma joined Bjorn Ironside and King Harald's raiding party to return to Kattegat and dethrone Ivar. During the trip across the Baltic, she was asked to watch over Magnus. During the massive storm ride, she overheard Magnus praying in fear to God, not Odin, and questioned him about it. Magnus denied to her that he was a Christian.
Amma has been living in Kattegat as a friend of Gunnhild and Bjorn. She is shown to be fond of Hvitserk, and is seen taking care of him when he was drunk or drugged. Amma participates in the second and final battle against the Rus Invasion of Scandinavia. She is killed by Ganbaatar.
- Amma means "grandmother" in Old Norse. In later Scandinavian languages it also has the meaning "wet nurse."
|Season five appearances|
|The Departed Part 1||The Departed Part 2||Homeland||The Plan||The Prisoner|
|The Message||Full Moon||The Joke||A Simple Story||Moments of Vision|
|The Revelation||Murder Most Foul||A New God||The Lost Moment||Hell|
|The Buddha||The Most Terrible Thing||Baldur||What Happens in the Cave||Ragnarok|
|Season six appearances|
|New Beginnings||The Prophet||Ghosts, Gods, and Running Dogs||All The Prisoners||The Key|
|Death and the Serpent||The Ice Maiden||Valhalla Can Wait||Resurrection||The Best Laid Plans|
|King of Kings||All Change||The Signal||Lost Souls||All At Sea|
|The Final Straw||The Raft of the Medusa||It's Only Magic||The Lord Giveth||The Last Act|