Yes, all these are close to Harpo Studios in Chicago, IL:
Near Westiside of Chicago. It's called Harpo Studios. (Harpo is Oprah backwards) I don't know the exact address but it is also near the studio that Ellen Degeneres Show is in.
Ferrin Thomas
Harpo Studios. This is the name of the studio because that is Oprah spelled backwards.
Studio usually has a kitchenette
Harpo Marx
This is their studio mailing address: Tokio Hotel c/ o Universal Music Stralauer Allee 1 10245 Berlin Germany That is not the address to the studio but to Universal. The studio is in Lüneburg.
The closest hotel is the Comfort Inn & Suites near Universal Studios Hollywood - North Hollywood, located at 6147 Lankershim Blvd, North Hollywood, CA, 91606.
Oprah Winfrey Harpo Studios, Inc. 1058 West Washington Blvd. Chicago, IL 60607 USA
Harpo Svensson's birth name is Jan Harpo Torsten Svensson.
Vogelsen
Harpo Speaks
Harpo Productions's population is 410.