Monarch Douglas Bank (No. 112) - S2-E2
Factual error: After Red receives the package containing the tooth, it cuts to a city image that reads "Warsaw, Poland" but the city shown in this image is not Warsaw, it is actually Budapest, the capital of Hungary. This specific image shows the Széchenyi Chain Bridge (Széchenyi Lánchíd) and the Buda Castle (Budavári Palota), in Budapest. (00:06:50)
Factual error: The airline boarding pass from Melbourne, Australia to Zurich shows the code MLB, instead of the correct code MEL. The code MLB is for Melbourne Orlando International Airport in Florida. (00:58:40)
The Architect (No. 107) - S4-E14
Revealing mistake: Aram Mojtabai fires a high-caliber weapon, destroying a vehicle with it. But after the weapon is fired, the projectile is still in it. Instead, the weapon's lower jaw has disappeared. (00:34:35)
Continuity mistake: The van which kidnaps agent Navabi first appears as a different car company; during the pursuit, it becomes a Mercedes Sprinter, and in the end, it becomes a Dodge van, all in the same pursuit. (00:12:30 - 00:13:30)
Answer: The man Red killed, Sam Scott, was Lizzie's adoptive father, not her biological one. However, at that time Lizzie (and thus the audience), was led to believe her real father abandoned her and her mother, so expect more secrets to be revealed how her real father actually died (or if he's even actually dead).
Bishop73