The Agency can't hold a candle to its French original, Le Bureau des Legendes or, "The Bureau". The French version is so much better and more realistic spy than any other series I might have watched. It does to spies what The Wire did to drug crime and policing back int the day. At least in my opinion (I'm not French).

There's also an unlicensed version of the Spanish series "The Ministry of Time" called Timeless. I think they settled, but I also think the end result of the adapted copy (as in, changing every subject matter so it matched a US-based timeline and events, and hence cutting the whole history to the last couple centuries basically) looked...poor.