Wyrm, that is delightful! I hear Emil as BBC English, perhaps from the 1950s (I mean, Emil says things like 'get along swimmingly'); Sigrun I can't decide between a Northumbrian/Borders accent and braid Scots; Mikkel as Somerset (or is that 'Zummerzet') or maybe Dorset, something slow and buzzing; Reynir as something between Old English and Middle English; and yes, Lalli (and Tuuri when she is speaking Finnish) as the sort of Welsh I hear spoken by my cousins from Pontypridd. And Kitty of course speaks Universal Cat.
No wonder they have communication problems!