Cozy Chalet

You've been invited to spend this year's eve in this chalet on top of a mountain. How cool and cozy! Did you know that you can turn off the playing radio, or switch to different stations? From the window, the chalet has a wide view on a big city. The gifts under the tree and the Christmas stockings at the fireplace are for different KoGaMa characters. Can you guess who else is invited?