Rosie trained at the Royal Academy of Music and the London Opera Centre. She studies vocal technique with Joy Mammen. 

Opera: 

Includes:Marie Regnault inThérese (Royal Opera House),Dear Ivor (Welsh National Opera),Queen of the Night in the Magic Flute (Opera North),Gianetta in The Gondoliers (Nottingham Playhouse),Fiakermilli in Arabella,Venus in Orpheus in the Underworld, Esmeralda in The Bartered Bride, Ankhesenpaaten in Akhenaten, Papagena in The Magic Flute & Zou Zou in La Belle Vivette (all at English National Opera),Musetta in La Boheme (Opera Northern Ireland),Josephine in HMS Pinafore (City Center, New York), Frasquita in Carmen (Earl’s Court & Japanese tour), Despina in Cosi Fan Tutte (BBC TV), Clorinda in La Cenerentola (Garsington Festival) Solange in Not in Front of The Waiter (Combe Manor),The Nightclub Singer in Maschinist Hopkins (Concertgebouw, Amsterdam), Violetta in La Traviata (Holland Park), Hélene in La Belle Hélene (Sadlers Wells),Dinah in Trouble in Tahiti & Mrs Gobineau in The Medium(Musiktheater Transparant Belgium),Suzanne in Robinson Crusoe (Iford Festival),Ruth in The Pirates of Penzance (Carl Rosa), Little Buttercup in H.M.S. Pinafore (Barbican),Katisha in The Mikado (Congress,Cwm Bran) The Old Lady in Candide (Iford & Grange Festivals). 

Musical Theatre: 

West End credits include Carlotta in the original cast of The Phantom of the Opera (Her Majesty's),Madame Thénardier in Les Misérables(The Palace), Hortense in The Boyfriend (The Old Vic & The Albery),Forbidden Broadway (The Fortune),Cunegonde in Candide(The Old Vic),YumYum in The Metropolitan Mikado (Queen Elizabeth Hall),Ellen in What About Luv? (Holland Park),Manon in Bitter Sweet (Sadlers Wells),Widow Corney in Oliver! (Palladium),Felicia Gabriel in The Witches of Eastwick ( Theatre Royal, Drury Lane, nominated for an Olivier Award for Best Supporting Performance in a Musical),Miss Andrew in Mary Poppins (Prince Edward),Bea Singer in Honeymoon in Vegas (London Palladium),Mrs Fezziwigg in A Christmas Carol (Lyceum),Grandma Mole in the Secret Diary of Adrian Mole (The Ambassadors).

​

Also:Lady Holyroyd in Floradora (The Finborough),Janet in The Rocky Horror Show & Maria in West Side Story (Nottingham Playhouse),Julie Laverne in Showboat (RSC/Opera North),Timothy’s Mother & Ashphynxia in Salad Days (national tour), Annie in Annie Get Your Gun & The Witch in Into The Woods (Ipswich),The Old Bag in The Gingerbread Man (Birmingham), Sister Mary Amnesia in Nunsense (Farnham),Mrs Higgins in My Fair Lady (Larnaca Festival, Cyprus),Viv Nicholson in the original production of Spend, Spend, Spend! (West Yorkshire Playhouse),Lady Plymdale in After the Ball (Covent Garden Festival),The Beggar Woman in Sweeney Todd (Royal Festival Hall),Mrs Lovett in Sweeney Todd (Gothenburg Opera), Call Me Merman (Salisbury Playhouse & tour),Mona Kent in Dames at Sea (The Union),Betty in The Great American Trailer Park Musical (Waterloo East),Miss Bleacher in Crush (Coventry & tour), Grandma Mole in The Secret Diary of Adrian Mole Aged 13 & 3/4 (Leicester Curve),Sister Mary Lazarus in Sister Act ( Leicester Curve & tour),Kate Hoey M.P. in Committee (Donmar), Mrs Smith in The Arcadians (Wilton's Music Hall), Mrs Pearce in My Fair Lady (Teatro Massimo, Palermo)

Theatre: 

Hermia in A Midsummer Night’s Dream (Barbados Festival), Lottie Grady in When We Are Married (Garrick),Orinthia in The Applecart (Ipswich),Madame Spritzer in 13 Rue De L’Amour (Northampton), Mrs Darling in Peter Pan (Nottingham),Fairy Godmother in Cinderella (Birmingham Hippodrome),Fairy Daffodil in Jack & The Beanstalk Cardiff),The Wicked Queen in Snow White (Norwich),The Old Bag inThe Gingerbread Man (Birmingham & Dubai), Dottie Otley in Noises Off (Salisbury), Lolly Tucker in The Bed Before Yesterday & Joyce in There's No Place Like a Home (The Mill at Sonning), Mrs Fraser in Stepping Out (national tour), Flung Together!, On The Sunny Side of The Street & Tonight at 8.30: Lily in Red Peppers,Myrtle in Still Life,Clare Wedderburn in Hands Across The Sea,Claire in We Were Dancing,Nanny in Ways & Means,Violet Vibart in Star Chamber, Jane in Family Album,Martha in Shadow Play (all at Jermyn Street Theatre). 

Television: 

Lucy Lockitt in The Beggar’s Opera & Despina in Cosi Fan Tutte (BBC), The House of Eliott, The Music Game, Whale On, Nell Gwynne in The Garden of Evelyn, An Audience with Ronnie Corbett,Open House,Cynthia Cyclops in Monster TV,The Confidante in The Phantom of the Opera 25th Anniversary Concert & Esmeralda Bronwyn Jones in Doctors. 

Radio:

Vassa in The Blue Book (Dr Who), Cleo in The Most Happy Fella, Friday Night is Music Night, Songs From the Shows,100 Best Singers, Cocktails with Kit & The Widow, In Tune. 

Recordings: 

The Phantom of the Opera, The Witches of Eastwick, The Boyfriend, Bitter Sweet, Kismet, The Student Prince, Oliver!, The Lady and The Slipper, Les Miserables 10th Anniversary Concert,Mary Poppins,The Killer Soprano,Serious Cabaret, Rosie Ashe's Vocal Warm Up For Singers.

Rosie also gives private singing tuition & has given many master classes, notably at the Royal Scottish Academy of Music & Drama,The Royal Academy of Music,Guildford School of Acting, Arts Educational,The London School of Musical Theatre & for The British Council at The Opera House, Tel Aviv.