Richard Shiffrin is the Luther Dana Waterman Professor of cognitive science for the Department of Psychological and Brain Sciences at Indiana University, Bloomington. Shiffrin has contributed a number of theories of attention and memory to the field of psychology. He co-authored the Atkinson–Shiffrin model of memory in 1968 with Richard Atkinson, who was his academic adviser at the time. In 1977, he published a theory of attention with Walter Schneider. With Jeroen G.W. Raaijmakers in 1980, Shiffrin published the Search of Associative Memory (SAM) model, which has served as the standard model of recall for cognitive psychologists well into the 2000s. He extended the SAM model with the Retrieving Effectively From Memory (REM) model in 1997 with Mark Steyvers.

Richard Shiffrin is an avid rock climber who has scaled walls in the Dolomites, Smith Rock, the Italian Alps, and many more. His community service involves volunteering at a local rock climbing gym as a route setter. He runs a Cognitive Science Conference every summer, the Annual Summer Interdisciplinary Conference, or ASIC, held at different world class outdoor adventure and rock climbing sites. The web page for 2012 is http://www.cogs.indiana.edu/asic/2012/index.html. He is also a long time backcountry skier (mostly in the environs of Jackson Hole Wyoming). Powerpoint slide shows of skiing and climbing may be located under 'Hobbies' on his home page at: http://www.cogs.indiana.edu/shiffrin/index.html.

Laura Jeanne Reese Witherspoon (born March 22, 1976), better known as Reese Witherspoon, is an American actress and film producer. Witherspoon landed her first feature role as the female lead in the film The Man in the Moon in 1991; later that year she made her television acting debut, in the cable movie Wildflower. In 1996, Witherspoon appeared in Freeway and followed that appearance with roles in three major 1998 films: Overnight Delivery, Pleasantville and Twilight. The following year, Witherspoon appeared in the critically acclaimed Election, which earned her a Golden Globe nomination.

2001 marked her career's turning point with the breakout role as Elle Woods in the box office hit Legally Blonde, and in 2002 she starred in Sweet Home Alabama, which became her biggest commercial film success to date. 2003 saw her return as lead actress and executive producer of Legally Blonde 2: Red, White & Blonde. In 2005, Witherspoon received worldwide attention and praise for her portrayal of June Carter Cash in Walk the Line, which earned her an Academy Award, Golden Globe, BAFTA and Screen Actors Guild Award for Best Actress in a Leading Role.

David Michael Letterman (born April 12, 1947) is an American television host and comedian. He hosts the late night television talk show, Late Show with David Letterman, broadcast on CBS. Letterman has been a fixture on late night television since the 1982 debut of Late Night with David Letterman on NBC. Letterman recently surpassed friend and mentor Johnny Carson for having the longest late-night hosting career in the United States of America.

Letterman is also a television and film producer. His company Worldwide Pants produces his show as well as its network follow-up The Late Late Show with Craig Ferguson. Worldwide Pants has also produced several prime-time comedies, the most successful of which was Everybody Loves Raymond, currently in syndication.

In 1996, David Letterman was ranked #45 on TV Guide's 50 Greatest TV Stars of All Time.

Letterman was born in Indianapolis, Indiana. His father, Harry Joseph Letterman (April 1915 – February 1973), was a florist of British descent; his mother Dorothy Letterman (née Hofert, now Dorothy Mengering), a Presbyterian church secretary of German descent, is an occasional figure on the show, usually at holidays and birthdays.