Yeah, it's pretty easy to go find accent videos for all of their birth countries. The simplest option would be going to YouTube to listen to videos from Finnish people(Mikko, Lake, and Arvo), Norwegian people(Rune, Bjørn, Klaus, Torulf, and Jørgen), and the Americans(Devon and Travis)
You can also go, if you so desire, to IDEA (International Dialects of English Archive) and use their data base to find accents for specific states, countries, and areas in an academic setting meant to capture specific sounds and create references for people like actors and linguists.