Tim Allen and Blake Clark were later voice actors in Toy Story 3 & 4. Allen did the voice of Buzz Lightyear and Clark did the voice of Slinky the Dog, who replaced the late Jim Varney who voiced the character in the first 2 films.
The first appearance of Blake Clark as Harry, proprietor of a local hardware store, a role he would continue through the end of the series.
The title comes from the optimistic view of life: Life begins at forty.