“Longborough fielded a strong-voiced Ruggiero in the baritone Oskar McCarthy.”

Opera Magazine (October 2022 edition) on La liberazione di Ruggiero dall’isola d’Alcina (Longborough Festival Opera, 2022)

“Oskar McCarthy asserts his highly pleasing baritone to excellent effect as Ruggiero”

musicOMH on La liberazione di Ruggiero dall’isola d’Alcina (Longborough Festival Opera, 2022)

“Baritone Oskar McCarthy sings with the confidence and panache one should expect of Ruggiero”

Seen and Heard International on La liberazione di Ruggiero dall’isola d’Alcina (Longborough Festival Opera, 2022)

“Oskar McCarthy the baritone soloist sounded warm and expressive… outstanding”
Wharfedale Observer on Dvorak Te Deum and Brahms Requiem (Ilkley Choral Society 2022)

“standout performances come from… Oskar McCarthy, mercurially nasty as the bastard (in every way) Edmund”
The Times on King Lear (The Grange Festival 2021)

“tremendous comic talent”
Oxford Prospect on The Elixir of Love (Waterperry Opera Festival 2021)

“McCarthy is in top form again as dodgy dealer Dulcamara, singing and acting with breathtaking energy”
Oxinabox on The Elixir of Love (Waterperry Opera Festival 2021)

“the comedy is quite broad and most of it centres on Oskar McCarthy’s smarmy Dulcamara. His is an eye-catching physical performance and he is also vocally assured, notably with all his amusing patter when describing the remarkable powers of his ‘medicine’”
Seen and Heard International on The Elixir of Love (Waterperry Opera Festival 2021)

“Oskar McCarthy was so superbly slimy it felt he deserved a show all of his own”
Oxford Daily Info on The Elixir of Love (Waterperry Opera Festival 2021)

“a tour de force… McCarthy’s performance was mesmerising”
The Herald on Eight Songs for a Mad King (RCS/Red Note Ensemble 2020)

”Oskar McCarthy sang forthrightly as a knowing, not too malevolent Don Alfonso“
Sunday Times on Così fan tutte (Waterperry Opera Festival 2020)

”I longed for more of the charismatic leadership of Oskar McCarthy’s Don Alfonso”
Oxford Daily Info on Così fan tutte (Waterperry Opera Festival 2020)

”McCarthy dealt impressively with the gravitas needed”
Planet Hugill on Così fan tutte (Waterperry Opera Festival 2020)

“Oskar McCarthy, who played Kromov, has great comedic talent that is restrained yet hilarious to watch.”
EarRelevant on The Merry Widow (Opera Bohemia 2019)

"Athletically precise in both his body language and singing, McCarthy relishes the wit in Jeremy Sams’ translation of the libretto."
The Stage on Don Giovanni (Waterperry Opera Festival 2018)

"Oskar McCarthy was particularly brilliant in the role of Don Giovanni’s servant, Leporello. He brought a mischievous humour and wit to the character, breaking up the tragedy and counterbalancing Don Giovanni’s abhorrent behaviour with his humanity. "
Everything Theatre on Don Giovanni (Waterperry Opera Festival 2018)

"Oskar McCarthy is an amiable Papageno, strong on humour without over-egging his opportunities"
Hastings Observer on The Magic Flute (Opera Anywhere 2018)

"All the principals adopted Irish brogues, none more successfully than Oskar McCarthy's impetuous Bartley, as he prepared to ride to his death."
Opera Magazine (February 2018 edition) on Riders to the Sea (Midsummer Opera 2017)

"Oskar McCarthy’s portrayal of Robert’s increasing anxiety (which would one day culminate in suicidal actions) was touching and believable."
Judith Weir on Duet (Re: Sound 2016)

"Oskar McCarthy's bolshy Leporello stole the show with a performance of real vocal and physical power"
Opera Now (June 2016 edition) on Don Giovanni (Midsummer Opera 2016)

"It's quiet, dreamlike and slightly hypnotic, McCarthy's baritone as convincing communicating hope as it is plumbing the depths of despair. There's a fine balance to his performance style, believably and naturalistically inhabiting a character whilst delivering a fantastic vocal performance."
London City Nights on Buried Alive (2016)

"Oskar McCarthy has a stage presence and a clarity of diction (both spoken and sung)"
British Theatre Guide on After Party (Re: Sound 2015)

"Arsamenes was sung by baritone Oskar McCarthy with eloquence and agility, and he played the character of the suffering brother and lover with such sensitivity”
Bachtrack on Xerxes (Hampstead Garden Opera 2015)

"Carmen loves Escamillo, a splendidly haughty Oskar McCarthy with resounding baritone and matador splendour."
The Argus on CarMen (Secret Opera 2015)

"Adam Torrance and Oskar McCarthy give fine comic performances as Ferrando and Guglielmo."
Daily Express on Cosi fan tutte (Pop-up Opera 2014)