Here's the list of "history's greatest villains" who will menace the Legends in DC's Legends of Tomorrow season 5. After spending season 4 chasing mythological creatures throughout time and stopping the demon Neron from turning Earth into Hell, the Legends will be taking on some of the worst evildoers in history next season.
The Legends of Tomorrow season 4 finale, "Hey World!", teased season 5's premise while John Constantine and Nora Darhk (who is now a Fairy Godmother) were in Hell trying to save Ray Palmer's soul. After meeting up with Astra Logue, they ventured into Neron's vault in the Soul Exchange where the demon keeps his fortune of Hell's primary currency: the souls of humans he intends of torture trapped in thousands of gold coins. As Nora found Ray's soul coin, Astra helped herself to handfuls of other coins to "bankroll" her future in Hell.
At the conclusion of "Hey World!", Astra returned to the Soul Exchange to cash in her coins, which contain some of the worst sinners in human history. Naturally, the Legends are unaware of the new threats they'll deal with when the series returns in midseason 2020. It should also be noted that the list below only contains names shown in "Hey World!", but Astra took and released many other souls. A big question after the Legends of Tomorrow season 4 finale is whether or not these historical villains were returned to the eras when they originally lived; if not, it could be an entertaining wrinkle. That said, below are the confirmed historical villains fans can expect in Legends of Tomorrow season 5.
Genghis Khan (1162 - 1227) - The founder and Great Khan of the Mongol Empire, Genghis Khan conquered 12 million square miles of Eurasia and his brutal wars destroyed cities and caused the deaths of over 40-million people.
Caligula (12 - 41 A.D.) - The third Roman Emperor, Gaius Julius Caesar Germanicus took power at 25 years old, but an illness left him deranged. Caligula's reign as Emperor is infamous for his excesses and debauchery until he was assassinated in 41 A.D.
Mary Tudor (1516 - 1558) - Mary I was the daughter of Henry VIII. As Queen of England, she aggressively tried to reverse the English Reformation and to return the country to the Catholic faith. She burned hundreds of Protestants to earn the nickname "Bloody Mary".
Grigori Rasputin (1869 - 1916) - Known as the Mad Monk, Rasputin was born a Russian peasant and was a sexually promiscuous mystic and self-professed holy man who befriended Tsar Nicholas II and his family. When Rasputin was put to death, he predicted the Romanov family would die as well, which happened 15 months later in the Russian Revolution.
John Wayne Gacy (1942 - 1994) - Gacy was an American serial killer who raped, tortured, and murdered at least 33 teenage boys in 1970s' Illinois. Gacy was known as the "killer clown" because of the characters Pogo the Clown and Patches the clown he used to appear as during charitable events.
Charles Manson (1934 - 2017) - Manson was an American cult leader and killer who formed the infamous Manson Family commune based in California. The Manson Family committed nine murders in 1968-1969 Hollywood, including the killing of actress Sharon Tate.
Lizzie Borden (1860 - 1927) - Lizzie Borden was suspected of murdering her parents with an ax in Fall River, Massachusetts in 1892. Although she was acquited at her trial, she remained the main suspect of the murders until her death in 1927.
Joseph Stalin (1878 - 1953) - After brutally seizing power, Stalin was the dictator of the Union of Soviet Socialist Republics (USSR) from 1929-1953. At least 5 million Russians were murdered or exiled to gulags as Stalin transformed Russia from a poor peasant society to an industrial superpower.
While these historical villains will be significant threats in season 5, there should still be a big bad to take down. Legends of Tomorrow's showrunner Phil Klemmer told TVLine that they would be episodic villains and that the mysterious, main villain of season 5 would not be magic-based like season 3's Mallus and season 4's Neron.
DC's Legends of Tomorrow season 5 returns in 2020 on The CW.