The Dutch baritone, Thomas Oliemans, graduated from the Amsterdam Conservatory, coached by Margreet Honig. He continued his studies with KS Robert Holl, Elio Battaglia, Dieter Müller and Dietrich Fischer-Dieskau.
Thomas Oliemans made his opera debut in 2002 with the Nationale Reisopera of The Netherlands as the Father in Hans Werner Henze’s Pollicino conducted by Aldert Vermeulen. He returned as Minos in Georg Frideric Handel’s Arianna in Creta and Ned Keene in Benjamin Britten’s Peter Grimes conducted by Kenneth Montgomery. Further opera appearances followed such as Heraut in Gluck’s Alceste, Der Komthur in Schulhoff’s Die Flammen and Rudolf in Schreker’s Der Ferne Klang - all at the Amsterdam’s Concertgebouw during the NPS opera matinee series. Douphol in Traviata with the Netherlands Philharmonic Orchestra and a live TV broadcast open-air concert with Vesselina Kasarova at the Grachtenfestival Amsterdam.
In 2005 he made his debut at the Salzburg Festival as Gonsalvo Fieschi in Schreker's Die Gezeichneten conducted by Kent Nagano. Further important debuts followed in 2006 as Papageno in W.A. Mozart´s Die Zauberflöte with the Opera of Nantes and Angers, to great public and critical acclaim, and at the Opera de Genève as Guglielmo in Cosi fan Tutte. That same year he also sang Frank Martin’s Der Sturm in Mulhouse.
Most recent appearances include Figaro in Il Barbiere di Siviglia at the Scottish Opera, Maximilan in Leonard Bernstein's Candide at the Vlaamse Opera in Antwerp, Papageno in Die Zauberflöte at the Théâtre du Capitole in Toulouse, Harlequin in Ariadne auf Naxos at the Opera National du Rhin in Strasbourg, Tarquinius in Benjamin Britten's Rape of Lucretia at the Vlaamse Opera in Antwerp and Gent, Silvano in Un Ballo in Maschera , the title role in Adam in Exile (Dutch contemporary world premiere) and Le Grand Prêtre in Castor et Pollux at the De Nederlandse Opera in Amsterdam, Sonora in Fanciulla del West, Der Bootsman in Frank Martin's Der Sturm and Strauss’ Des Esels Schatten’, all with the Dutch Radio Philharmonic Orchestra for the prestigious NPS opera matinee series at the Amsterdam’s Concertgebouw, L’Enfance du Christ by Berlioz with the Limburg Symphony Orchestra as well as a program of Wagner songs (Orchestrated by Henze) with the Bochumer Symphoniker at the Konzerthaus Dortmund.