His performance as Wendoll in John Dexter's production of A Woman Killed with Kindness opposite Joan Plowright drew favourable reviews.

[4] He also appeared as Brachiano in The White Devil, Barelli in The Rules of the Game with Paul Scofield; Ganya in The Idiot with Derek Jacobi; Desmoulins in Danton's Death with Christopher Plummer; and Bassanio to Olivier's Shylock.

The production was described by critic Irving Wardle as having "a notably Byronic performance by Frank Barrie; a romantically virile figure whose wolfish mouth offers a constant threat of blisteringly destructive irony".

[6] Later leading London appearances include A Midsummer Night's Dream at the Open Air Theatre, Regent's Park, where he played Oberon opposite Linda Thorson as Titania.

[7] He also appeared as Arthur Kipps in The Woman in Black at The Fortune; Lord Rosebery in Motherdear opposite Margaret Lockwood at The Ambassadors and Janacek at The Royal Festival Hall, in which he achieved his long held ambition of conducting an orchestra.

worldwide, in a record breaking 65 countries, including Australia when in 1982 he represented Great Britain in the Commonwealth Games Arts Festival in Brisbane.

Writing credits include Wellington, The Family at Ham; The Devil you Know and The Other Woman which was broadcast by the BBC, starring Dame Thora Hird[13] In May 2022 he appeared as Flashman at 80 - celebrating the character's fictional bicentennial.