History channels “Vikings” adds three new regulars to season four

Peter Franzen, Jasper Paakkonen and Dianne Doan are added to the cast for the upcoming fourth season. Franzen will play King Harald Finehair , Paakkonen has been cast as Finehair’s younger brother Hafdan the Black, with Doan who  will play Yidu, a Chinese character who will have a big role.