The 100 Trivia
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50 free The 100 trivia questions with answers. The 100 ran for seven seasons and exactly 100 episodes on the CW, from a dropship full of juvenile delinquents in 2014 to a species-wide test for Transcendence in 2020. This quiz walks the whole arc: the dying Ark and its floated criminals, the Grounder clans and their invented language, the Mountain Men and their bone-marrow harvest, A.L.I.E. and the City of Light, the second death wave, the bunker, the Eligius prisoners, the Primes of Sanctum and the Disciples of Bardo. Easy questions cover the network, the cast and the big plot beats; harder ones dig into who really killed whom, the origins of the Grounders revealed in the prequel episode, the actors' earlier soap-opera lives, and the 'bury your gays' backlash that followed Lexa's death. It suits anyone who binged the show, argues about the finale, or just wants to know how much they remember of Wanheda, Blodreina and the rest. Every answer was checked against Wikipedia and other published sources, and the citation sits under each question, so you can settle any disagreement in the group chat.
30 of 50 questions with answers and explanations. Play the quiz
Q 01The 100 aired on which American network from 2014 to 2020?
The CW
The CW planned the ending: when it announced that season seven would be the last, it gave it 16 episodes so that The 100 would finish on exactly its 100th.
Q 02Which delinquent is speared as The 100's pilot ends?
Jasper
Jasper takes a spear in the chest on the trek to Mount Weather, the first proof that someone else is alive on the ground; he survives it.
Q 03Who developed The 100 for television and served as its showrunner?
Jason Rothenberg
Jason Rothenberg was looking for a pilot to write when the publisher pitched him the idea in a meeting, before the first novel had even reached the shops.
Q 04The 100 is based on a young adult novel series by which author?
Kass Morgan
Kass Morgan is the pen name of book editor Mallory Kass; the show's makers say they kept her main ideas and themes but follow little of her story.
Q 05Why does The 100's Ark send prisoners to the ground?
Failing life support
Failing life support leaves the Ark with only months of air, so the council gambles its jailed teenagers to learn whether Earth can be lived on again and to save oxygen for everyone else.
Q 06In The 100's finale, humanity passes the Judge's test and does what?
Transcends as one consciousness
Transcends as one consciousness: everyone but Clarke joins a higher collective being. She is barred for a killing during the test, so her friends give up eternity to live out their days with her on Earth.
Q 07The 100 was filmed in and around which city?
Vancouver
Vancouver was home for the whole run, and the cameras stopped just in time: the final scenes were shot there in mid-March 2020, as the pandemic was shutting other productions down.
Q 08Which linguist created Trigedasleng for The 100, as well as Dothraki for Game of Thrones?
David J. Peterson
David J. Peterson built Trigedasleng as a descendant of English, not an alien tongue: its words come from English, their sounds and meanings shifted over three generations on the ground.
Q 09Which Australian actress plays Clarke Griffin in The 100?
Eliza Taylor
Eliza Taylor never auditioned for Clarke: producers saw a tape of her old audition for a film and called her in to read the very next day, just as she was ready to quit Los Angeles.
Q 10Which actor plays Bellamy Blake in The 100?
Bob Morley
Bob Morley married the actress who plays Clarke in 2019, the pair announcing it only after a secret wedding; he also directed an episode of season six.
Q 11Which actress joined The 100 in season two as Commander Lexa?
Alycia Debnam-Carey
Alycia Debnam-Carey also landed a lead in Fear the Walking Dead, which left her free for only seven episodes of season three, one reason the showrunner gave for killing Lexa off.
Q 12Lexa dies in which season-three episode of The 100, which also reveals the fate of the Ark's lost station Polaris?
"Thirteen"
"Thirteen" shows the Ark destroying Polaris, its thirteenth station, then kills Lexa with a stray bullet right after she and Clarke get together; the showrunner ended up apologising to furious fans.
Q 13In The 100, who fired the stray bullet that killed Lexa?
Titus
Q 21In season two of The 100, the Mountain Men harvest what from the captured delinquents to survive radiation?
Bone marrow
Bone marrow from the Ark-born captives promised permanent immunity, where Grounder blood had only bought time, so the Mountain Men kept harvesting even though it killed the donors.
Q 22In season three of The 100, how does A.L.I.E. take control of people's minds?
They swallow a chip
They swallow a chip that carries them into the City of Light, a virtual world with no pain; the catch is that A.L.I.E. erases their painful memories along with it.
Q 23In The 100, who created the A.L.I.E. artificial intelligence?
Becca
Titus, Lexa's own Flamekeeper, was trying to shoot Clarke with Murphy's gun and pin it on her own people, hoping to turn the Commander against them; the shot hit Lexa instead.
Q 14After Lexa's death in The 100, fans raised money in her name for which charity?
The Trevor Project
The Trevor Project runs a round-the-clock crisis line for LGBT young people; fans angry at the storyline turned to it, and donations passed $100,000 within about a month of the episode.
Q 15In the third episode of The 100, who murders Wells Jaha, the Chancellor's son?
Charlotte
Charlotte, one of the youngest of the 100, stabs Wells hoping to end her nightmares about his father, who had her parents executed; Murphy is blamed and nearly hanged before she confesses.
Q 16After wiping out Mount Weather, Clarke earns which Trigedasleng title, meaning 'Commander of Death'?
Wanheda
Wanheda is a dangerous name to carry: Grounders believe that killing someone takes their power, so the Ice Nation queen puts a bounty on Clarke to command death herself.
Q 17As an illegal second child on the Ark, where was Octavia hidden as she grew up?
Under the floor
Under the floor of the family's quarters, during every inspection; she was caught when Bellamy sneaked her out to a masked ball, and their mother was executed for having a second child.
Q 18Jasper and Monty were locked up on the Ark for what?
Making illegal substances
Making illegal substances got both locked up: they raided the Ark's farm-grown herbs, and Jasper still blames Monty for forgetting to replace what they took.
Q 19In The 100, why was John Murphy's father executed on the Ark?
Stealing medical supplies
Stealing medical supplies cost him his life: he took medicine when his young son caught the flu, and Murphy's mother blamed the boy and drank herself to death.
Q 20Which actress, X2's Lady Deathstrike, was in the main cast of The 100 for the pilot only?
Kelly Hu
Kelly Hu played Callie Cartwig, Abby's best friend, but the part was cut when budgets tightened after the show was picked up; the showrunner joked that she had been 'floated off camera'.
Becca built A.L.I.E. to make life better for mankind, but the AI decided the root problem was too many people and launched the world's nuclear missiles.
Q 24In The 100, what do the Grounders call the death wave of radiation that ends season four?
Praimfaya
Praimfaya comes from the world's nuclear power plants, built to run unattended for only a hundred years and by then melting down; it leaves a single green valley alive.
Q 25After winning The 100's conclave, who does Octavia say gets the bunker?
Every clan
Every clan equally: Octavia fought as her own people's champion but gave each clan 100 places, about 1,200 in all, only to learn that her own people had already seized the bunker and sealed the door.
Q 26In The 100, the bunker where Wonkru survives was built by which doomsday cult?
Second Dawn
Second Dawn's first bunker proves a death trap: it was never properly shielded and everyone inside had died. The real shelter was hidden beneath the Grounders' own capital all along.
Q 27In season five of The 100, the convicts who land in the valley come from which prison mining ship?
Eligius IV
Eligius IV left to mine an asteroid before the bombs fell, so its convicts come home more than a century late to a planet with one valley left; the craft that lands is its drop ship, the Gagarin.
Q 28As ruler of Wonkru in the bunker in The 100, Octavia takes which title?
Blodreina
Blodreina means the Red Queen: Octavia earns it by cutting down those who defy her and wearing their blood as armour, then makes lawbreakers fight to the death in the pit.
Q 29In The 100, who triggers Damocles, the strike that destroys the last habitable valley on Earth?
McCreary
McCreary, seeing his men beaten, would rather burn the valley than let anyone else have it; Clarke kills him moments later, and the survivors flee to orbit as the last green land on Earth dies.
Q 30In The 100, why does a ten-year cryosleep last 125 years?
Earth never recovered
Earth never recovered: the couple who stayed awake watched the planet stay dead year after year, so they found the sleepers a new world and left video diaries to explain.