A kingdom is nothing without a king and Hyrule has many of them. While their personalities change depending on the incarnation they all tend to be loyal defenders of their realm and a loving, if somewhat distant, father for Princess Zelda.
In the Animated Zelda series King Harkinian is played by Colin Fox. In the Zelda CDI games a re-imagined version of Harkinian is played by Mark Berry. Breath of the Wild's King Rhoam is voiced by Bill Rogers.