takes on the role of Siggy Haraldson on The History Channel
's newest show, Vikings
. We chatted with the actress about shooting on location in Ireland, working with Gabriel Byrne
, and ridding herself of her "Hollywood needs" - including makeup - to achieve a viking look. Jessalyn also chatted about her Glee
costar Heather Morris
's pregnancy, saying, "She's going to be an amazing mother." Vikings
airs Sundays at 10 p.m. Edt/9 Central.