King Frodo was a viking king and among the Black Danes residing with a massive army at Reading, England. He was one of three kings with King Hemming and King Angantyr met by Ubbe and Torvi. Ubbe proposed them an alliance against Ivar, and offering them settlement in East Anglia. When Frodo refused, Ubbe challenged him to single combat and killed him.
- Gavan O Connor Duffy previously appeared in the episode "Burial of the Dead" as a House carl.
|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|