Born in Frankfurt am Main and having grown up in Neu-Ulm and Vienna, Daniel Prohaska comes from a family of musicians and "theatre folk". He studied at the Vienna Conservatoire specialising in operetta and musical comedy, though his professional career has taken him beyond that into other theatre genres such as opera and drama.
Daniel Prohaska sang the leading role in the noted world premiere of Cherubini's rediscovered opera "Koukourgi", and sings further parts such as "Steuermann" (The Flying Dutchman, Wagner), "Pedrillo" (The Abduction from the Seraglio, Mozart), "Jaquino" (Fidelio, Beethoven), "Danilo" (The Merry Widow, Lehár), "Tassilo" (Countess Maritza, Kálmán), "Leopold", "Siedler" (The White Horse Inn, Benatzky), "Symon" (The Beggar Student, Millöcker), "Mr X" (The Circus Princess, Kálmán), "Adam" (The Bird Seller, Zeller), "August/1. Fremder" (The Cousin from Nowhere, Künneke), "Josef" (Vienna Blood, Strauß), "Jean Valjean" (Les Misérables, Boublil/Schönberg), "Billy Crocker" (Anything Goes, Porter), "Tony" (West Side Story, Bernstein), "Jesus" (Jesus Christ Superstar, Webber), "Don Lockwood" (Singin' in the Rain, Freed/Brown), "Anthony", "Toby" (Sweeney Todd, Sondheim), "Che" (Evita, Webber), "Les" (Bouncers, Godber), "the Young Gentleman" ("Roundelay of Love", Schnitzler).
Daniel Prohaska is a regular guest at the Vienna Volksoper, the State Theatre on Gärtnerplatz in Munich, the Opera in Graz, the Theatre of St. Gallen, he has sung in the Royal Festival Hall in London, the National Opera in Strasbourg, Mulhouse, furthermore in Klagenfurt, Düsseldorf/Duisburg, Cologne, Regensburg, Lucerne and other theatres and concert halls.