Legends of Tomorrow AU, where Rip Hunter took advantage of the fact that he’s got a time ship and therefore he doesn’t have to stick to just one time period when assembling his crew.
Mick Rory is an Irish immigrant in mid-19th century San Francisco - also a firebug. Rip picks him up in 1851, just as the fire is getting a good grip in the paint shop he broke into to get a bit of money.
Lady Sara Lance is a courtier at Versailles during the height of the reign of the Sun King - also, secretly the local representative of the League of Shadows, spying on state secrets and occasionally ending a life when required.
Ray Palmer is a brilliant businessman and inventor from the late 21st century and part of a group of like-minded individuals engaged in the founding of what they hope to be a succesful new way of running a state: The Kasnia Conglomerate.
Martin Stein was part of the Manhatten Project, where an extraordinary experiment bonded him with Ronnie Raymond, an engineer from the Navy, turning them into Firestorm. Some twenty years later, Ronnie died under tragic circumstances, leading to Stein ending up having to - somewhat mutually reluctantly - bond with one Jefferson “Jax” Jackson, who mostly volunteered to be tested for compatibility hoping to find a way not to get shipped off to Vietnam along with the rest of the drafted soldiers.
Leonard Snart aka Captain Cold, thief and supervillain from early 21st century Central City. He keeps a heat gun among his possession, twin to the cold gun that gave him his name, but has yet to find someone suitable to wield it.
The reincarnations of Chay-Ara and Khufu from pagan Rome, from the life they both spent fighting and killing as gladiators in the arenas during the reign of Nero. Rip picks them up on the eve of their final battle, where Vandal Savage has arranged for them to fight each other to the death.