I am sorry, but I have not found an actor or actress named Harald Holst with a notable film career or important films that would justify an encyclopedic entry.

They do not appear to be a prominent figure in the cinematic landscape, nor is there any available data on significant films or typical roles attributed to them in recognized databases.

Therefore, it is not possible to write an encyclopedic biography based on real facts. Perhaps there was a typo in the name, or this is a much lesser-known figure than initially thought.