Shows Like The Letter for the King

If you liked The Letter for the King (2020), a action & adventure and sci-fi & fantasy series, here are 20 shows with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Nowhere Boys (2013)
★ 6.8/10Also action & adventure and sci-fi & fantasy
Four teenage boys get lost in the forest and discover, when they return home, that they are in an alternate world identical to theirs except for one startling difference - they were never born.
2
Star Wars: Skeleton Crew (2024)
★ 6.8/10Also action & adventure and sci-fi & fantasy
Four ordinary kids search for their home planet after getting lost in the Star Wars galaxy.
3
Adventure Time: Side Quests (2026)
★ 9/10Also action & adventure and sci-fi & fantasy
Young hero Finn and his magical dog best friend Jake embark on adventures across the fantastical land of Ooo — partying with cloud people and punching evil in the butt along the way.
4
The Dragon Prince (2018)
★ 8.2/10Also action & adventure and sci-fi & fantasy
An extraordinary discovery inspires two human princes and an elven assassin to team up on an epic quest to bring peace to their warring lands.
5
The Lord of the Rings: The Rings of Power (2022)
★ 7.2/10Also action & adventure and sci-fi & fantasy
Beginning in a time of relative peace, we follow an ensemble cast of characters as they confront the re-emergence of evil to Middle-earth. From the darkest depths of the Misty Mountains, to the majestic forests of…
6
3Below: Tales of Arcadia (2018)
★ 7.5/10Also family and sci-fi & fantasy
After crash-landing on Earth, two royal teen aliens on the run struggle to blend in with humans as they evade intergalactic bounty hunters.
7
Avatar: The Last Airbender (2005)
★ 8.8/10Also action & adventure and sci-fi & fantasy
In a war-torn world of elemental magic, a young boy reawakens to undertake a dangerous mystic quest to fulfill his destiny as the Avatar, and bring peace to the world.
8
The Colour of Magic (2008)
★ 6.8/10Also action & adventure and sci-fi & fantasy
As Rincewind involuntarily becomes a guide to the naive tourist Twoflower, they find themselves forced to flee the city of Ankh-Morpork to escape a terrible fire, and begin on a journey across the Disc. Unknown to…
9
Batman: The Brave and the Bold (2008)
★ 7.6/10Also action & adventure and sci-fi & fantasy
The Caped Crusader is teamed up with Blue Beetle, Green Arrow, Aquaman and countless others in his quest to uphold justice.
10
Ben & Holly's Little Kingdom (2009)
★ 6/10Also family and sci-fi & fantasy
The friendship between fairy princess Holly and Ben Elf in an enchanted magical kingdom of elves and fairies.
11
Fantastic Four (1994)
★ 6.5/10Also action & adventure and sci-fi & fantasy
When Reed Richards, Sue and Johnny Storm and pilot Ben Grimm take a premature space flight on a new shuttle, they find themselves massively bombarded with cosmic radiation. Barely managing to re-enter and land safely…
12
Tin Man (2007)
★ 6.6/10Also action & adventure and sci-fi & fantasy
Small-town waitress DG is pulled into a magical realm called the Outer Zone, ruled by the tyrannical Azkadellia. Together with her companions Glitch, Raw and Cain, DG journeys to uncover her lost memories, find her…
13
Hercules: The Legendary Journeys (1995)
★ 6.9/10Also action & adventure and sci-fi & fantasy
The legendary son of Zeus journeys across the earth fighting monsters and helping people.
14
The Avengers: Earth's Mightiest Heroes (2010)
★ 8.2/10Also action & adventure and sci-fi & fantasy
The most powerful villains on the planet escape from prison. However, none of the superheroes can stop them without help, not even S.H.I.E.L.D. The Avengers then join forces to fight evil, and discover that as a group…
15
LEGO Nexo Knights (2015)
★ 7.2/10Also action & adventure and family
The adventure takes place in the futuristic Kingdom of Knighton. It focuses on the Nexo Knights as they journey to defeat Jestro the evil jester, the Book of Monsters, and their lava monster army. Clay leads the Nexo…
16
Spider-Man: The New Animated Series (2003)
★ 7.2/10Also action & adventure and sci-fi & fantasy
Bitten by an irradiated spider, teenager Peter Parker gains arachnid-like powers that make him both a hero to those in need and a vigilante wanted by the police.
17
The Young Indiana Jones Chronicles (1992)
★ 6.5/10Also action & adventure and sci-fi & fantasy
At the dawn of the 20th century, Indiana Jones discovered the world. From globetrotting family expeditions as a 9-year-old to the battlefields of World War I as a teenager, Indy’s experiences shaped the heroic…
18
Marvel's Avengers (2013)
★ 7.5/10Also action & adventure and sci-fi & fantasy
The further adventures of the Marvel Universe's mightiest general membership superhero team. With an all-star roster consisting of Iron Man, Captain America, Thor, Hulk, Hawkeye, Falcon and, occasionally--when she…
19
Merlin (2008)
★ 7.8/10Also action & adventure and sci-fi & fantasy
The unlikely friendship between Merlin, a young man gifted with extraordinary magical powers, and Prince Arthur, heir to the crown of Camelot.
20
Avatar: Seven Havens (2026)
★ 9/10Also action & adventure and sci-fi & fantasy
In a world shattered by a devastating cataclysm, a young Earthbender discovers she's the new Avatar after Korra. But in this dangerous era, that title marks her as humanity's destroyer, not its savior. Hunted by both…