This short looks at the following questions: How would you act as an expectant father? How many greeting cards are sold in the USA each year? Why do indoor radiators make that pounding noise? Why do mammals yawn?
| Actor | Role |
|---|---|
 Pete SmithNarrator (voice) | Narrator (voice) |
 Dave O'BrienExpectant Father / Greeting Card Shopper / Hospital Patient / Job Applicant | Expectant Father / Greeting Card Shopper / Hospital Patient / Job Applicant |
 Don BrodieRadiator Repairman (uncredited) | Radiator Repairman (uncredited) |
 Charles KingSleepy Businessman (uncredited) | Sleepy Businessman (uncredited) |