| Marvin is still unfinished
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| Spoiler Alert!
Warning! This page contains spoilers for The Sword of Summer.
Marvin and his brother Otis are commonly sacrificed by the god Thor and are reborn a short time after. When Otis brings Magnus, Sam and Hearth for help Marvin scolds Otis for taking so long and threatens to kill the demigods if they do not save Thor before saying 'nice to meet you'. After Thor is saved Hearth and the demigods eat the goats. He later pulls Thor's chariot to Gerriod's palace.
- Marvin's real name, Tanngrisnr, means snarler, since he does so quite often.
- Marvin is annoyed by the fact that he gets sacrificed along with his brother every single time.
|Magnus Chase and the Gods of Asgard|
|Core Series:||The Sword of Summer | The Hammer of Thor| The Ship of the Dead|
|Main Characters:||Magnus Chase | Alex Fierro | Blitzen | Halfborn Gunderson | Hearthstone | Mallory Keen | Samirah al-Abbas | Sumarbrander | Thomas Jefferson Jr.|
|Minor Characters:||Annabeth Chase | Frederick Chase | Gunilla | Randolph Chase|
|Norse Gods:||Freya | Frey | Thor | Loki | Odin | Frigg | Ullr | Vidar | Heimdall | Sif|
|Minor Gods:||Hel | Mimir | Ran | Aegir|
|Jotnar:||Surt | Utgard-Loki | Ymir|
|Monsters:||Ratatosk | Jormungand | Fenris|