Actor Allusion: Some of the things Jo and Lindsay put on Mac's "profile page" are his favorite movies, The Godfather, Dirty Harry & A Bridge Too Far, and tv shows, Survivor & NCIS (both also on CBS). The Godfather is one of Gary Sinise's all-time favorite films. They include a favorite quote of Sinise's from President Calvin Coolidge: "The nation that forgets its defenders will itself be forgotten." They also include that Mac graduated from both Highland Park High School and the University of Chicago. Gary did graduate from HPHS, but never attended college at all (although his wife, Moira, was attending an IL college when the two met, which people often mistake for him having done so).
