| Production | Played by | Opening Night |
|---|---|---|
| Doctor Knock 1926 (Abbey) | Quinn, Tony | Tuesday, 16 February 1926 |
| Doctor Knock 1927 (Abbey) | Stephenson, John | Tuesday, 22 March 1927 |
| Production | Played by | Opening Night |
|---|---|---|
| Doctor Knock 1926 (Abbey) | Quinn, Tony | Tuesday, 16 February 1926 |
| Doctor Knock 1927 (Abbey) | Stephenson, John | Tuesday, 22 March 1927 |