China (Axis Powers Hetalia) is 4000+ years old, but appears much younger due to being the only country that is truly immortal.
Washio (Buso Renkin) is a homunculus, which makes him an ageless life-form, with immunity from diseases, making him very hard to kill.
Papillon (Buso Renkin) is a homunculus, which stops him from aging, and even prevents him from dying from his mortal disease, making him very hard to kill.
Kinjo (Buso Renkin) is a homunculus, which stops him from aging and immune to any mortal diseases and very hard to kill.
The Four Founders of Eden (Code:Breaker) are all Dignified Power users, and thus mastered their life force to the point of ceasing their aging.
Kouji (Code:Breaker) is a Dignified Power user, and has ceased aging for a long time.
Prime Minister Fujiwara (Code:Breaker) has mastered his life force like the Dignified Power users, and stopped aging.
Road Kamelot (D.Gray-man) hasn't aged in 35 years, keeping her preteen appearance forever.
Shinigami (Death Note) will remain eternal, so long as they continuously use their Death Notes to extend their own lifespan when necessary.
Artificial Humans (Dragon Ball) such as 17 and 18 ceased to age since they are altered at a cellular level, while 16 is synthetic from the start.
Artificial Human 19 (Dragon Ball) is a synthetic creation of Dr. Gero who will not age.
Dr. Gero (Dragon Ball) converted himself into an Artificial Human, thus escaping old age for the sake of eternal life.
Master Roshi (Dragon Ball) eats constantly Paradise Grass, which prevents him from dying of old age.
Tomiko Asahina (From the New World) restores the length of her telomeres, allowing her to extend her life indefinitely.
As one of the first generation of Angels, Michael (Highschool DxD) is over 10,000 years old , having lived since the time of the Biblical God.
As one of the first generation of Angels, Gabriel (Highschool DxD) has lived for over 10,000 years.
Kakuzu (Naruto) tears still-beating hearts out of his victims and integrates them into his own body, extending his lifespan so long as he continues this process when necessary.
Hidan (Naruto) is the successful product of the Jashin religion's experiments of immortality, and cannot die of injuries, but can die of hunger; in essence, he's the inverse of a typical semi-immortal.
Sasori (Naruto) converted himself into a puppet, escaping old age and sustenance intake necessity; the only way to kill him is to attack his core of living flesh.
Madara Uchiha (Naruto) linked himself to the Gedo Statue of the Outer Path, extending his lifespan indefinitely so long as he remains hooked up to this life support. However, this did not stop him from aging.
Zetsu (Naruto) are ageless, as Black Zetsu is an artificial human created from Kaguya's materialized will, while White Zetsu are mutated humans.
Brook (One Piece) possesses eternal youth since his second life is supported by his Devil Fruit ability, and his living cell tissues have already rotted off before he came back to life.
The power of the Hobi Hobi no Mi has given Sugar (One Piece) eternal youth. Despite her appearance, she is actually 22 years old.
Archie (Pokemon Adventures) wearing the armor Eternity, which grants him eternal life as the inside has its own timezone.
Kurousagi (Problem Children are Coming from Another World, Aren't They?) is no longer aging and has lived for over 200 years and still has the appearance of a 18 years old.
Younger Toguro (Yu Yu Hakusho) and his older brother wished to become demons, preventing them from aging.
Elder Toguro (Yu Yu Hakusho) and his younger brother wished to become demons, preventing them from aging.
As the incarnation of the natural world, Lala-Ru (Now and Then, Here and There) hasn't aged in over 600,000 years.
Muromi (Muromi-san) is completely ageless, having been alive since Pangaea over 300 million years ago.
The Golden Tyrant/Judas Iscariot (Seikon no Qwaser) has lived for over two thousand years since the time of Jesus Christ.
The Ancient Dragon (Seiken Tsukai no World Break) is the most ancient metaphysical of them all, as he has lived completely unchanged by the passage of time for countless ages.
Demi-goddess Rory Mercury (GATE) retains the appearance of a 12 years old girl, despite being 964 years old.
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Semi-Immortality | Superpower Wiki | FANDOM powered by Wikia
- Real Vampires, Immortality, Gothic, Pagan, Eternal Life ... - December 8th, 2016 [December 8th, 2016]
- Semi-Immortality - Superpower Wiki - Wikia - December 8th, 2016 [December 8th, 2016]
- Crown of Immortality - Wikipedia - December 8th, 2016 [December 8th, 2016]
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- 'Rick And Morty' Theory: Did Rick Gift Morty With Immortality ... - moviepilot.com - February 7th, 2017 [February 7th, 2017]
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- Diet Culture Exists to Fight Off the Fear of Death - The Atlantic - The Atlantic - February 7th, 2017 [February 7th, 2017]
- The best evah? Not everybody at parade rated this year's comeback number one - The Boston Globe - February 8th, 2017 [February 8th, 2017]
- Why Immortality Is Overrated - NPR - February 9th, 2017 [February 9th, 2017]
- Immortality of written words - University of Virginia The Cavalier Daily - February 9th, 2017 [February 9th, 2017]
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- Sleepy Hollow: Ichabod Comes Home and Malcolm Achieves Immortality - TVOvermind - February 12th, 2017 [February 12th, 2017]
- Immortality | The Institute for Creation Research - February 12th, 2017 [February 12th, 2017]
- Immortality | Dragon Ball Wiki | Fandom powered by Wikia - February 12th, 2017 [February 12th, 2017]
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- Reality Of Immortality: Oregon State Is Five Games Away From ... - Building the Dam - February 14th, 2017 [February 14th, 2017]
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- McGraw One Step From Hoop Immortality :: Notre Dame Women's ... - Notre Dame Official Athletic Site - February 20th, 2017 [February 20th, 2017]
- Blind love and immortality haunt 'The Invention of Morel' | Chicago ... - Chicago Sun-Times - February 20th, 2017 [February 20th, 2017]
- Aussies should prep for immortality, as life expectancy rises - Techly - February 23rd, 2017 [February 23rd, 2017]
- Johnson chasing 8th title, racing immortality - La Crosse Tribune - February 23rd, 2017 [February 23rd, 2017]
- Technology, immortality and pensions - The Times (subscription) - February 24th, 2017 [February 24th, 2017]
- Fighting McGregor Just Another Easy Step to Immortality for Mayweather - The Sweet Science - February 24th, 2017 [February 24th, 2017]
- Faces of Russia: Mila Arutyunyan on Immortality - Argophilia Travel News - February 27th, 2017 [February 27th, 2017]
- Frank Mason becomes a part of KU basketball immortality - Wichita Eagle (blog) - March 1st, 2017 [March 1st, 2017]
- Living Immortality, Russian Economy in 2017, How Big Is Russia's Inequality Gap, and the Kremlin's Risky Plans - Institute of Modern Russia - March 1st, 2017 [March 1st, 2017]
- The mortal side of biological immortality - Kennebec Journal & Morning Sentinel - March 1st, 2017 [March 1st, 2017]
- Immortality | Harry Potter Wiki | Fandom powered by Wikia - March 1st, 2017 [March 1st, 2017]
- Georges St-Pierre Takes Aim at Immortality in Title Shot Against Michael Bisping - Bleacher Report - March 2nd, 2017 [March 2nd, 2017]
- Middletown's Bertoni is 4 wins away from 4 titles, state-wrestling immortality - Frederick News Post (subscription) - March 3rd, 2017 [March 3rd, 2017]
- Lecture 18 - The Badness of Death, Part III; Immortality ... - March 6th, 2017 [March 6th, 2017]
- Decoding death: Craig Venter's quest to uncover secret to immortality in our DNA - Genetic Literacy Project - March 9th, 2017 [March 9th, 2017]
- Atlassian aims for corporate immortality in the cloud - The Australian Financial Review - April 8th, 2017 [April 8th, 2017]
- How two trades pushed Patrik Elias into Devils immortality | New ... - New York Post - April 8th, 2017 [April 8th, 2017]
- The baseball immortality of Beaver County's James Madison Toy - Tribune-Review - April 8th, 2017 [April 8th, 2017]
- Why the Grand National is the holy grail and sporting immortality the prize - Telegraph.co.uk - April 8th, 2017 [April 8th, 2017]
- Diane Paulus sees immortality in 'Finding Neverland' - Orlando Sentinel - June 6th, 2017 [June 6th, 2017]
- AI experts: Prepare for a sad immortality - Bulletin of the Atomic Scientists - June 6th, 2017 [June 6th, 2017]
- The Ayatollah and his immortality - Tehran Times - June 6th, 2017 [June 6th, 2017]
- Public broadcasting's immortality defies reason - The Washington Post - Washington Post - June 6th, 2017 [June 6th, 2017]
- Golden State Is One Win Away From Immortality, And The Cavs Can't Do Anything About It - UPROXX - June 8th, 2017 [June 8th, 2017]
- Golden State Is One NBA Finals Victory From Immortality - The Federalist - June 10th, 2017 [June 10th, 2017]
- Nick Tavares: Reds' Scooter Gennett the latest to achieve baseball immortality - SouthCoastToday.com - June 11th, 2017 [June 11th, 2017]
- Sidney Crosby, Evgeni Malkin and Stanley Cup immortality - Yahoo Sports - June 12th, 2017 [June 12th, 2017]
- LIVE FOREVER? Julian Assange claims immortality is near by 'DIGITISING BRAINS' - Express.co.uk - June 16th, 2017 [June 16th, 2017]
- immortality at a price - TheRecord.com - June 17th, 2017 [June 17th, 2017]
- Achieving immortality through good cinema - The Navhind Times - June 17th, 2017 [June 17th, 2017]
- 'Immortality mushroom' discovered in mountains of western Turkey's anakkale - Daily Sabah - June 20th, 2017 [June 20th, 2017]
- FILMING IMMORTALITY: Independent filmmaker Tanya Fermin brings unreal life to Wilmington's film industry - encore Online - June 20th, 2017 [June 20th, 2017]
- Scientist Say Lack Of Funding Is Biggest Obstacle To Immortality - EconoTimes - June 21st, 2017 [June 21st, 2017]
- Hang in There: The 25-Year Wait for Immortality - June 21st, 2017 [June 21st, 2017]
- Lions v All Blacks: Furlong ready to take next step in bid for immortality - Belfast Telegraph - June 23rd, 2017 [June 23rd, 2017]
- Keanu Reeves Addresses Those Immortality Rumors (Video) - TheWrap - June 24th, 2017 [June 24th, 2017]
- Complete Immortality - TV Tropes - June 24th, 2017 [June 24th, 2017]
- Can The Harry Potter Fandom Survive A New Canon? - BuzzFeed News - June 30th, 2017 [June 30th, 2017]
- Why the super-rich are ploughing billions into the booming 'immortality industry' - Evening Standard - June 30th, 2017 [June 30th, 2017]
- Lions reaction: Sean O'Brien wants 'immortality' as Ferris says momentum could prove key to beating All Blacks - Belfast Telegraph - July 1st, 2017 [July 1st, 2017]
- Living to 125 and beyond: Scientists dispute there's a limit to - KMOV.com - KMOV.com - July 2nd, 2017 [July 2nd, 2017]
- Graham Simmons Takes Lions Hype To Barely Palatable Level During Sean O'Brien Interview - Balls.ie - July 3rd, 2017 [July 3rd, 2017]
- Achieving immortality through literature - The Navhind Times - July 3rd, 2017 [July 3rd, 2017]
- Immortality crowned best at Italian film festival - Tehran Times - Tehran Times - July 3rd, 2017 [July 3rd, 2017]
- Fancy a vitamin infusion? - EsquireMe - July 4th, 2017 [July 4th, 2017]
- British and Irish Lions 2017: Warren Gatland tells Lions to seize immortality after naming unchanged side for third ... - City A.M. - July 5th, 2017 [July 5th, 2017]
- Billionaires dream of immortality. The rest of us worry about healthcare - The Guardian - July 5th, 2017 [July 5th, 2017]
- Newgrange: Ireland's amazing feat of Stone Age engineering - CNN International - July 6th, 2017 [July 6th, 2017]
- Ronan O'Gara suggests how Sean O'Brien should have responded to immortality question - SportsJOE.ie - July 7th, 2017 [July 7th, 2017]
- The immortality of man - The Hindu - July 7th, 2017 [July 7th, 2017]
- Lions have what it takes to claim immortality against All Blacks - Irish Times - July 7th, 2017 [July 7th, 2017]
- 'Biggest game ever' for Lions as immortality beckons - Irish Times - July 8th, 2017 [July 8th, 2017]
- Reliving Edhi's journey to immortality | Pakistan | thenews.com.pk - The News International - July 8th, 2017 [July 8th, 2017]
- Conditional immortality - Sunbury Daily Item - July 8th, 2017 [July 8th, 2017]
- Maradona, the mafia and immortality: three decades on from Napoli's Holy Grail - The42 - July 10th, 2017 [July 10th, 2017]
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- Letter to the Editor: Conditional immortality? - Sunbury Daily Item - July 14th, 2017 [July 14th, 2017]