The Other Darrin: "A Day for Eeyore" is the first theatrical Pooh cartoon to feature replacement voices for Pooh (Hal Smith), Rabbit (Will Ryannote Who would voice both him and Tigger in Welcome to Pooh Corner.), Kanga (Julie McWhirter), and the Narrator (Laurie Mainnote Who would also appear in Welcome to Pooh Corner also playing the narrator (both off screen and on screen).). Roo and Christopher Robin, who had already been portrayed by multiple voice actors, are also recast here.
Talking to Himself: Hal Smith does double duty in "...and a Day for Eeyore", taking over the role of Pooh while also retaining his established role as Owl.
What Could Have Been: Walt Disney had tapped famous Disneyland performer Wally Boag to voice Tigger in Blustery Day, and Boag contributed heavily early on in the short's development to help define Tigger's personality. After Disney's death, Boag was dropped from the project in favor of Paul Winchell. Other actors who auditioned for the role included such legends as Paul Frees, Don Messick, and Daws Butler.