CBS' updated version of the classic Gershwin musical, cast largely with stars who were all appearing in then-current CBS television series.
| Actor | Role |
|---|---|
 Carroll O'ConnorJohn P. Wintergreen | John P. Wintergreen |
 Cloris LeachmanMary Turner | Mary Turner |
 Jack GilfordAlexander Throttlebottom | Alexander Throttlebottom |
 Michele LeeDiana Devereaux | Diana Devereaux |
 Jim BackusSenator Robert F. Lyons | Senator Robert F. Lyons |
 David DoyleFrancis X. Gilhooley | Francis X. Gilhooley |
| BBob DugganSenate Clerk | Senate Clerk |
 Herb EdelmanLouis Lippman | Louis Lippman |
 Paul HartmanChief Justice | Chief Justice |
| SShirley KirkesMiss Benson | Miss Benson |
| GGarrett LewisSam Jenkins | Sam Jenkins |
 Jeannine RileyHotel Chambermaid | Hotel Chambermaid |
 Jesse WhiteMatthew Fulton | Matthew Fulton |
| TTed ZeiglerWhite House Guide | White House Guide |
 Ted KnightTed Baxter | Ted Baxter |