|Voice Actor||Jamie Watson|
|Relatives||Queen Sarah Saturday (wife)|
Prince Tuesday (son)
Prince Wednesday (son)
|Cartoon debut||Daniel's Picnic|
King Friday is the king of the Neighborhood of Make-Believe, the husband of Queen Sarah Saturday, and the father of Prince Tuesday and Prince Wednesday. He originally appeared in puppet form in the original Mister Rogers' Neighborhood.
As his wife's name is Queen Sarah Saturday, and we can assume the two are married, his full name is likely to be 'King Friday Saturday'