T. P. McKenna and Siân Phillips have appeared together in 3 films between 1965 and 1989, with a combined box office of $1.3 million. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 1965 | Young Cassidy | |
| 1985 | The Doctor and the Devils | $147,070 |
| 1989 | Valmont | $1.1 million |
T. P. McKenna also often with: Joe Lynch (3), Vernon Dobtcheff (3), Adrienne Posta (2), Aiden Grennell (2), Arthur O'Sullivan (2)
Siân Phillips also often with: Peter O'Toole (4), Claire Bloom (2), Flora Robson (2), Herbert Ross (2), Jonathan Pryce (2)