| Record | Name | Role |
| ROLE131968 | Ross; Chelcie | Beverly Weston, the patriarch |
| ROLE131969 | Dunagan; Deanna | Violet Weston, the matriarch |
| ROLE131970 | Morton; Amy | Barbara Fordham, the elder daughter |
| ROLE131971 | Perry; Jeff | Bill Fordham, Barbara's husband |
| ROLE131972 | Ranson; Molly | Jean Fordham, Barbara & Bill's daughter |
| ROLE131973 | Murphy; Sally | Ivy Weston, the middle daughter |
| ROLE131974 | Mayberry; Mariann | Karen Weston, the youngest daughter |
| ROLE131975 | Reed; Rondi | Mattie Fay Aiken, Violet's sister |
| ROLE131976 | O'Connor; Paul Vincent | Charlie Aiken, Mattie Fae's husband |
| ROLE131977 | Barford; Ian | Little Charles, Mattir Fae & Charlie's son |
| ROLE131978 | Guerrero; Kimberly | Johnna Monevata, the housekeeper |
| ROLE131979 | Cole; Gary | Steve Heidebrecht, Karen's fiance |
| ROLE131980 | West; Troy | Sheriff Deon Gilbeau |
| ROLE145121 | Deare; Morgan | Understudy: Beverly / Understudy: Charlie |
| ROLE145122 | Kavanagh; Anne | Understudy: Violet / Understudy: Mattie Fae |
| ROLE145123 | Moynihan; Elizabeth | Understudy: Barbara |
| ROLE145124 | Mullen; Mitchell | Understudy: Bill / Understudy: Steve |
| ROLE145125 | Porter; Ian | Understudy: Sheriff Deon Gilbeaue / Understudy: Little Charles |
| ROLE145127 | van der Pol; Sarah | Understudy: Jean / Understudy: Johnna |
| ROLE145128 | Roper; Lizzie | Understudy: Ivy / Understudy: Karen |
| Reference Number | Title | Date | Series |
| RNT/CO/1/580 | August: Osage County | 2008 | Costume Department Production Files |
| RNT/LI/3/326 | August: Osage County | 20 February 2008 | Scripts - Later Drafts |
| RNT/PR/4/1/969 | August: Osage County | 2008 | Press Production Review Files |
| RNT/PO/2/1/150 | August: Osage County | 2008 - 2009 | Lyttelton Production Office Show Files |
| RNT/PR/3/823 | August: Osage County | 2008 | Rehearsal and Production Photographs |
| RNT/PR/2/4/519 | 'August: Osage County' to play at National Theatre | 7 August 2008 | Press Releases 2000-2009 |
| RNT/SM/2/3/204 | August: Osage County | 2008-2009 | Lyttelton Show Reports |
| RNT/PP/3/1/31 | 2008 | 2008 | NT Production related printwork |
| RNT/AE/1/1/109 | August: Osage County | November 2008 | Digital Performance Videos |
| RNT/PO/2/1/174 | August: Osage County | 2008 | Lyttelton Production Office Show Files |
| RNT/PL/3/1068 | Tracy Letts and Amy Morton on August: Osage County | 28 November /2008 | Platforms Audio Recordings |
| RNT/PP/2/2/285 | August: Osage County | 26 November 2008 | Lyttelton Posters |
| RNT/PR/2/4/559 | 'August: Osage County' - Lyttelton | c. [November] 2008 | Press Releases 2000-2009 |
| RNT/PR/2/4/555 | 'August: Osage County' | c. [October] 2008 | Press Releases 2000-2009 |
| RNT/PR/2/4/521 | Production News from Royal National Theatre | 15 August 2008 | Press Releases 2000-2009 |
| RNT/AE/1/2/140 | Tracy Letts and Amy Morton on August: Osage County | 28 November 2008 | Platform Video Recordings |
| RNT/AE/1/1/110 | August: Osage County | November 2008 | Digital Performance Videos |
| RNT/PP/1/2/286 | August: Osage County | 26 November 2008 | Lyttelton Programmes |
| RNT/LI/3/460 | August: Osage County | 7 June 2007 | Scripts - Later Drafts |