The person who posted the picture is a guest star of the show and wrote this (I translated it from Danish):
Today I had the HUGE great honor and pleasure to play alongside Donald Sutherland and Elizabeth Mitchell, both of them are in the TV series “Crossing Lines” … And I’m in it too … in one episode. I look extremely high, but I am on a rock, otherwise I wouldn’t appear in the picture.
Source: Laura Elisabeth Christensen
Carine Strand - Crossing Lines - Elizabeth Mitchell - Photos - Set