This sounds slightly disingenuous: no one builds up a CV like hers by sheer chance. Later she describes her early years in the RSC in the 1960s as among the happiest of her life, because of the sheer possibility they offered. 'The only way was up,' she says. 'My first role was a spear-carrying Amazon.' Within a few years she was playing Cordelia to Paul Scofield's Lear.
She says her parents were scandalised when she insisted on going to Rada as a teenager in the 1950s. 'In Yorkshire at that time, acting was considered akin to streetwalking,' she says. She famously caused a stir on the Avengers set when she learned the cameraman was getting more money than she was and agrees that, while conditions for women in the business have generally improved since then, in many ways it's also much harder.
'It's so much more competitive,' she says. 'Women are still conditioned to be grateful for certain things: employment, money, applause, acceptance. Sometimes you have to stop and think: "Hang on, am I that grateful?"' And she lights another cigarette.
Honour previews from tonight, opens Feb 14, until May 6, Wyndhams Theatre, Charing Cross Road WC2, Mon to Sat 8pm (Feb 14 7pm), Wed and Sat mat 3pm, £12.50 to £42.50. Tel: 0870 950 0920. Tube: Leicester Square