Ziggy, Trixie and Pixel actual races

[possessor]

Was reading an article on LTA when I saw this

Various changes have been made to the Icelandic Latibær. Goggi mega has a dark skin, Halla hrekkjusvín is Asian and Siggi sæti is Swedish. Guðmundur Þór Kárason directs Siggi and lends him his voice. Then the Sports elf was put in a new costume and his appearance popped up so he changed from an Icelandic elf to a ‘slightly above averige hero’.

Ziggy sounds anything but Swedish!

Pixel is dark but where does he come from?