Originally, Alan Young was not considered for Scrooge, despite having played it in the album recording. Reportedly, it was because Walt Disney Pictures believed he would not agree to do a voice for animated film. However, when Young learned about the film in production from a friend preparing to audition for the lead, he contacted the film company to request an audition. The resulting audition was successful and Young learned about the studio's reason for not contacting him. In reaction, Young responded, "Hey, I worked in television for five years with a talking horse. At this point in my career, nothing's beneath me." As it happened, Young was praised for the role and continued to voice Scrooge McDuck throughout his life.
This is the last film where Clarence Nash provides the voice of Donald Duck and the first where Wayne Allwine provides the voice of Mickey Mouse.
On the original 1975 LP which served as inspiration for this film, the Ghost of Christmas Past was Merlin from The Sword in the Stone (1963) and the Ghost of Christmas Future was the Evil Witch from Snow White and the Seven Dwarfs (1937).