Productions
| Production | Opening Night | Performances |
|---|---|---|
| The Enemy Within 1962 (Abbey) | Monday, 6 August 1962 | 12 |
| The Enemy Within 1962 (Abbey) | Monday, 13 August 1962 | 9 |
| The Enemy Within 1962 (Abbey) | Tuesday, 4 September 1962 | 6 |
| The Enemy Within 1999 (Peacock) | Sunday, 16 May 1999 | 1 |