Theatre

Seagrove's theatre work includes the title role in Jane Eyre at Chichester Festival Theatre (1986); Ilona in The Guardsman at Theatr Clwyd (1992); and Bett in King Lear in New York, again at Chichester (1992).

She played opposite Tom Conti in Present Laughter at the Globe Theatre (1993); Annie Sullivan in The Miracle Worker at the Comedy Theatre (1994); Dead Guilty with Hayley Mills at the Apollo Theatre (1995); Hurlyburly for the Peter Hall Company when the production transferred from the London Old Vic to the Queen's Theatre (1997); co-starred with Martin Shaw in the Parisian thriller Vertigo (Theatre Royal Windsor October 1998) and then with Anthony Andrews (also Windsor, 1998).

In 2000 she appeared in Brief Encounter at the Lyric Theatre; followed by Neil Simon's The Female Odd Couple at the Apollo (2001). Again at the Lyric Theatre in 2002 she played the title role in Somerset Maugham's The Constant Wife, followed by a revival of David Hare's The Secret Rapture in 2003, and The Night of the Iguana two years later in 2005.

Coming to the West End from a UK tour, she played Leslie Crosbie in Maugham's The Letter at Wyndham's Theatre (2007), again co-starring with Anthony Andrews.^[2]

In December 2007, she played Marion Brewster-Wright in the Garrick Theatre revival of Alan Ayckbourn's dark, three-act comedy Absurd Person Singular.^[3]

In 2008, she and Martin Shaw starred in Murder on Air, at the Theatre Royal, Windsor.

In 2011, she once again starred alongside Martin Shaw in The Country Girl at the Apollo Theatre, playing the part of Georgie Elgin.

In early 2014, she appeared as Julia in a revival of Noël Coward's Fallen Angels. The production was produced by her partner Bill Kenwright and also starred Sara Crowe.^[4]

In 2015, she and Martin Shaw starred in an adaptation of Brief Encounter, using an original radio script from 1947 and staged as "a live broadcast from a BBC radio studio", at the Theatre Royal Windsor, playing the parts of Laura Jesson and Alec Harvey.^[5]

Returning to the West End in October 2017, Seagrove played Chris MacNeil in The Exorcist at the Phoenix Theatre.^[6]

Film

Seagrove starred alongside Rupert Everett in the Academy Award-winning short film A Shocking Accident (1982), directed by James Scott. Her first major film appearance was in Local Hero (1983) in which she played a mysterious environmentalist with webbed feet. Roles in a number of films including Savage Islands (aka, Nate and Hayes, 1983) opposite Tommy Lee Jones and Appointment with Death (1988) followed. One of her lead starring roles was in The Guardian (1990), directed by William Friedkin, in which she played an evil babysitter. In 2017, she played the lead role in Another Mother's Son, starring as Louisa Gould, a member of the Channel Islands resistance movement during World War II, who famously sheltered an escaped Russian slave worker in Jersey and was later gassed to death in 1945 at Ravensbrück concentration camp.

Television

Seagrove first came to mass public attention in the 10-episode series of the BBC production Diana (1984) adapted from an R. F. Delderfield novel, in which she played the title role as the adult Diana Gaylord-Sutton (the child having been played in the first two episodes by Patsy Kensit). Seagrove starred in two American-produced television miniseries based upon the first novels of Barbara Taylor Bradford: as Emma Harte in A Woman of Substance (1984) and Paula Fairley in Hold the Dream (1986). She portrayed stage actress Lillie Langtry in Incident at Victoria Falls (1992), a UK made-for-television film. As the female lead, Melanie James in the film Magic Moments (1989), she starred with John Shea, who played the magician Troy Gardner with whom she falls in love.

Seagrove, along with Simon Cowell, presented Wildlife SOS (1997), a documentary series about the work of dedicated animal lovers who save injured and orphaned wild animals brought into their sanctuary.

Most of Seagrove's filmed work since 1990 has been for television. Between 2001 and 2007, she appeared as QC Jo Mills in the series Judge John Deed. She was the subject of This Is Your Life in 2003 when she was surprised by Michael Aspel.

With John Thaw she guest starred as Mary Morstan in the episode "The Sign of Four" (1987) of the series Sherlock Holmes. She guest starred in episodes of Lewis ("The Point of Vanishing", 2009) and Identity ("Somewhere They Can't Find Me", 2010). A few years later, she appeared in the series Endeavour (the prequel to the Inspector Morse series), in the episode "Rocket" (2013).^[7]

Her credits as a voiceover artist include a 2001 series of Waitrose television advertisements by Banks Hoggins.^[8]

Mane Chance Sanctuary

Mane Chance Sanctuary is a registered charity, based in Compton, Guildford, that provides care for rescued horses. It aims to "provide sanctuary and relief from suffering for horses, while promoting humane behaviour to all animals and mutually beneficial relationships with people who need them."^[15]

The sanctuary was established in 2011 by Seagrove, who stepped in to support a friend facing financial difficulties.^[16] She was able to secure land on Monkshatch Garden Farm and has since grown the charity which today cares for over 30 horses using a unique system of equine welfare.

The charity's trustees include the actor Sir Timothy Ackroyd and the philanthropist Simrin Choudhrie.^[16] The chairman is James McCarthy. In 2014, she performed a duet alongside singer Peter Howarth called The Main Chance, as part of a cause for the sanctuary.