Only the words that are made up of them do. The individual letters in a word don't mean anything. By themselves, they simply indicate what sound you're supposed to make. For example, the letter s indicates the s sound (which sounds like ssssss).
About Rupert Boneham. Rupert Boneham (born January 27, 1964) is an American mentor for troubled teens, who became known to reality television audiences in 2003 as a contestant on Survivor: Pearl Islands where he placed 8th. He later appeared on the All Stars, Heroes vs. Villains, and Blood vs. Water seasons of Survivor, placing 4th, 6th, and 20th respectively.
Designated Survivor (TV series) Designated Survivor is an American political drama television series created by David Guggenheim, starring Kiefer Sutherland, airing on ABC. The project skipped the pilot stage and was ordered straight to series on December 14, 2015, followed by a formal announcement on May 6, 2016. The first episode premiered on September 21, 2016, with a full season order coming eight days later. The series was renewed for a second season on May 11, 2017, which premiered on September 27, 2017.