If you’re between the ages of 28 and 45 right now, Toonami probably raised you. It was the programming block that taught a generation of American kids what anime was, what mecha were, and why Goku going Super Saiyan still hits in 2026.
Toonami ran on Cartoon Network from 1997 to 2008, then was revived on Adult Swim in 2012 and is still going. Across both eras, it aired some of the most influential anime and action animation ever produced. Here’s my ranking of the 35 greatest.
Quick note on the list: Toonami aired both Japanese anime AND Western action animation (Samurai Jack, ThunderCats, ReBoot, etc.). Both count for this list, because both were genuinely formative for Toonami’s identity.
35Dragon Ball Z

The defining Toonami anime. DBZ on weekday afternoons after school is the single most consistent shared childhood memory for an entire generation. Goku, Vegeta, Piccolo, Gohan, the Cell Saga, the Buu Saga. The block built its identity around this show.
34Naruto

Premiered on Toonami in 2005. Introduced an entire generation of American kids to chakra, jutsu, and running with their arms behind their backs. The Naruto vs. Sasuke fight at the Valley of the End is still one of the most-cited “wow” moments in Toonami history.
33Bleach

Ichigo Kurosaki, Soul Reapers, hollows, and the eternal “Big Three” debate alongside Naruto and One Piece. Bleach joined the Toonami lineup late (2012, picking up at episode 255), but kept its audience hooked through the revival era.
32One Piece

One Piece’s Toonami journey was complicated. The original 4Kids dub was infamously censored (rice balls became sandwiches, guns became cartoonish props). Toonami eventually aired Funimation’s better dub before the show was cycled out. It returned on Adult Swim’s Toonami block from 2013 to 2017.
The 4Kids One Piece dub is one of the most-mocked anime localizations in history. Look up any clip on YouTube and prepare to cringe.
31Cowboy Bebop

The first anime ever aired on Adult Swim, which was a huge deal at the time. Shinichiro Watanabe’s space-jazz noir followed Spike, Jet, Faye, and Ed across the solar system bounty-hunting. The “see you space cowboy” ending is one of the most-cited finales in all of anime.
30Sailor Moon

Premiered on Toonami in 1998. Made magical girl anime mainstream in the West and introduced kids to the concept that “girly” shows could be just as action-packed as the boy-focused ones. The English dub didn’t get the fifth season, which fans never stopped complaining about.
29Yu Yu Hakusho

Toonami debut in 2003. Yusuke Urameshi, Spirit Detective, with Kuwabara, Kurama, and Hiei. Massively influential on later shōnen (you can see its DNA in Hunter x Hunter, Jujutsu Kaisen, basically everything). Still holds up.
28Attack on Titan

Toonami aired Attack on Titan across seven separate runs between 2014 and 2022. The maturity, the violence, the political complexity were a major shift from Toonami’s earlier era. The final season’s airing was a generational TV event.
27My Hero Academia

The defining shōnen of the late 2010s. Deku, Bakugo, All Might, and an entire school of superpowered teenagers. Toonami aired it during its peak years.
26Samurai Jack

Not technically anime (Genndy Tartakovsky’s masterpiece is American), but pure Toonami DNA. Samurai Jack was the LAST show aired on the original Toonami block in 2008 before its cancellation. The 2017 Adult Swim revival gave the series its proper ending.
25Dragon Ball

The original Goku-as-a-kid series. Less famous than DBZ but the foundation everything else stands on. Toonami’s reruns in the early 2000s introduced new fans to where it all started.
24Gundam Wing

Gundam Wing landed on Toonami in 2000 and was so successful that it basically created the late-night uncensored anime block that would later become Adult Swim. The five pilots, the political intrigue, and the mecha designs are still iconic.
23Rurouni Kenshin

Wandering swordsman who refuses to kill. Reverse-blade sword. Some of the best fight choreography in any anime of its era. Toonami aired the early arcs but didn’t get the legendary Kyoto arc, which fans still consider a betrayal.
22Outlaw Star

Toonami’s other great space anime (alongside Cowboy Bebop). Gene Starwind, his crew, and one of the more inventive sci-fi worlds of late-90s anime. Aired on Toonami in 2001.
21Yu-Gi-Oh!

The card-game anime that made an entire generation buy starter decks. Toonami aired chunks of the original Duel Monsters series. The “It’s time to duel!” energy is still recognizable to anyone who grew up on this.
20Pokémon: Master Quest

The Johto-region Pokémon series, aired on Toonami after the show moved from Kids’ WB. Helped continue the Pokémon franchise’s American TV momentum during the early 2000s.
19Cardcaptors

The Western adaptation of Cardcaptor Sakura. The English dub was famously rearranged to focus more on Li than Sakura, which fans of the original were not happy about. Still a beloved Toonami staple.
18.hack//Sign

The slowest, most cerebral show Toonami ever ran. .hack//Sign was about psychology, identity, and being stuck inside an MMORPG. Beloved by some, completely bounced off by others.
17Tenchi Muyo

One of the earliest harem anime to find a Western audience. Toonami censored some of the more risqué content. Tenchi and his cast of space-faring romantic interests aired on the block starting in 2000.
16The Big O

Mecha-noir set in Paradigm City, where everyone has lost their memories. Initially only moderately popular in Japan, but Toonami fans embraced it so hard that the second season got greenlit specifically because of Western demand.
15ThunderCats

The very first show ever aired on Toonami in 1997. Lion-O, Cheetara, Mumm-Ra, the whole 80s revival cast. The 2011 reboot also aired on Toonami briefly.
14Astro Boy (2003)

The 2003 remake of Osamu Tezuka’s foundational anime. Toonami’s airing introduced a new generation to one of the original anime characters ever created.
13Voltron

The first anime ever to air on Toonami. Five pilots, five robot lions, one giant combining mecha. Voltron was the genre template for combining-robot shows that came after.
Historical note: Voltron and ThunderCats both claim “first Toonami show” status, depending on whether you mean “first anime” (Voltron) or “first show overall” (ThunderCats). Both technically true.
12Hikaru no Go

An anime about the ancient board game Go, framed as a shōnen. Sounds boring on paper. Is actually incredible. Hikaru shares his body with the ghost of a Heian-era Go master and slowly learns to love the game.
11The Prince of Tennis

Sports anime about a tennis prodigy. Eventually evolves into “shōnen battle anime that just happens to use tennis rackets.” Got a 20th anniversary reboot in 2022.
10Hamtaro

The wholesome hamster anime that Toonami aired in the early 2000s. Surprisingly, became a symbol of anti-government protests in Thailand in 2020. Hamtaro contains multitudes.
9Robotech

A 1985 mashup of three separate Japanese anime series stitched into one continuous American storyline. Toonami’s reruns kept Robotech alive for a new generation in the late 90s.
8ReBoot

One of the very first fully CGI animated TV series ever. The animation looks rough by 2026 standards, but ReBoot was groundbreaking in 1994. Its final two seasons aired exclusively on Toonami in the US.
7Transformers: Armada

The early 2000s Transformers anime, localized from Japan’s Transformers: Micron Densetsu. Toonami aired this one to a Saturday morning crowd that already loved the toys.
6Cyborg 009

Nine cyborg heroes with various enhancements, led by Agent 009 (who has super speed). Aired in the same era as .hack//Sign. Underrated but solid.
5Duel Masters

Another card-game anime trying to ride the Yu-Gi-Oh! wave. The English dub leaned heavily into self-aware comedy and meta humor, which split fans down the middle.
4He-Man and the Masters of the Universe (2002)

The 2002 modernized He-Man reboot. More serialized than the original 80s show, with upgraded animation and a more coherent storyline. One of Toonami’s quietly great picks.
3Rave Master

Hiro Mashima’s pre-Fairy Tail series. Haru Glory and his quest for the Rave Stones. Familiar narrative DNA if you’ve watched Fairy Tail.
2The Real Adventures of Jonny Quest

The modern sequel to the 1960s Hanna-Barbera classic. Mixed reviews on release, but Toonami’s airing introduced Jonny, Hadji, and Race Bannon to a new generation of viewers.
1Jackie Chan Adventures

Jackie Chan voicing himself as a fictional version of himself who fights demonic threats with the help of his niece Jade and Uncle. The Talismans, the Demon Sorcerers, and “ONE MORE THING!” Iconic Toonami programming.
The Toonami Legacy
Why Toonami mattered: Before streaming, before legal anime access in the West, before Crunchyroll and Funimation as we know them, Toonami was how an entire generation of American kids found anime. The block introduced shōnen as a cultural force, made mecha viable on American TV, and turned Saturday nights into appointment viewing.
If you’re someone who watches anime now, there’s a strong chance you owe Toonami for that. The block didn’t just air shows. It curated a sensibility. The TOM (Toonami Operations Module) bumpers, the music, the way the block was edited together, all of it created an identity that nobody else has replicated.
The Original Toonami vs. The Adult Swim Toonami
There are essentially two Toonamis:
- Cartoon Network Toonami (1997-2008) — the afternoon and Saturday night block, mostly aimed at kids and teens. Heavy on shōnen, mecha, and Western action animation.
- Adult Swim Toonami (2012-present) — the late-night revival, aimed at adults. Darker, more mature anime. Attack on Titan, Demon Slayer, Jujutsu Kaisen, and more recent hits.
Both eras count. Both shaped the lineup on this list.
The State of Toonami in 2026
Where it stands now: Toonami still airs on Adult Swim on Saturday nights, and continues to broadcast new shōnen and recent anime. The lineup as of 2026 includes recent runs of Jujutsu Kaisen, Lycoris Recoil, Uzumaki, and various other current series.
The block’s audience has aged with it. What used to be “thing kids watched after school” is now “thing adults stay up for after their kids are in bed.” That’s a healthy evolution.
Honorable Mentions
Toonami aired a lot of great shows that didn’t quite make this 35-entry list:
- Inuyasha — actually aired on Adult Swim’s anime block, but very Toonami-adjacent
- Demon Slayer — major Adult Swim Toonami run
- Jujutsu Kaisen — currently airing in 2026
- FLCL — short and weird, beloved by everyone who saw it
- Trigun — Vash the Stampede on weeknights
- G Gundam — the silliest Gundam, in the best way
- Zoids — the other mecha franchise
- IGPX — Toonami’s only original anime production, genuinely good
- Megas XLR — Western action animation, beloved
My top three: Dragon Ball Z for the era-defining impact, Cowboy Bebop for being the best anime period, and Samurai Jack for genuinely being the show that made Toonami feel like art.
Real talk: If you grew up with Toonami, you have a specific memory of a specific bumper or a specific episode that no list can capture. The block was bigger than the sum of its shows. The bumps, the music, the TOM character, the curation of it all. That whole experience is what made Toonami matter.
So, what’s your top Toonami memory, and which show on this list defined your childhood the most? For me, it’s DBZ on a Friday afternoon with cereal. Tell me yours.