Question: When was the American stand-up comedian who was a supporting cast in "Who's the Caboose?" born? 
Sentence (from "Who's the Caboose?"): The screenplay by Sam Seder and Charles Fisher depicts a romantically involved couple (Silverman and Seder) who travel separately from Manhattan to Los Angeles to attempt to secure a television series role during "pilot season," a set period of months when producers cast new shows.
Relevant evidence: No