Believe it or not, the elderly-looking gentleman sitting upon a rather mediocre throne is actually King Randor! This illustration from the 1986 Masters of the Universe annual is typical of the artwork found in the book. At the time the artists working on the annuals were referring to artwork and character designs from the three issues of the DC Masters of the Universe comic. The 1987 annual would see a dramatic shift in style as the artists found themselves working with a great deal of Filmation reference material!
(click on the image to see it at full-size)