Is there any way to change how this is sorted? Right now it looks to be whatever the first four programs are that are added for the actor, not necessarily the programs s/he is actually best known for. A better sort method would be based on the number of episodes recorded for programs instead; not sure how your back end code looks to change this.
As an example, Gerald McRaney's "Known For" list is several small roles however his two biggest shows, Simon & Simon (156 episodes) and Major Dad (96 episodes) aren't listed.