When Catherine Chandler enters Julio Ramirez's house, a Portuguese flag can be clearly seen in his bedroom wall. However, not only "Ramirez" is clearly a surname with Spanish origins, but also the name "Julio" is pronounced as in Spanish. Furthermore, his mother speaks to him in Spanish ("We're in here, hijo").
When Cat and Vincent meet out by Cat's car in front of the warehouse it is very obviously raining, yet her hair stays perfectly dry.