Born in Evansville, Indiana, Daniel Mantei began his ballet training with Ceyhun Ozsoy in Duncanville, Texas. He graduated from Booker T. Washington High School for the Performing and Visual Arts in Dallas, Texas and spent several summers training at various schools including Houston Ballet, The Kirov Academy and Boston Ballet.
In 2000, Mantei was a guest artist with Texas Christian University's dance department, performing Basilio in Fernando Bujones' staging of Don Quixote, Act III. At 16, he was named a 2001 Presidential Scholar for the Arts and invited to dance variations from Las Fille Mal Gardée and Don Quixote at the Kennedy Center. Mantei attended The Royal Ballet School during the 2001-2002 school season, performing with both The Royal and Birmingham Royal Ballets.
Mantei joined ABT's Studio Company in 2002. He joined the main Company in April 2003 as an apprentice and became a member of the Company's corps de ballet in April 2004. His repertory with the Company includes the King Card in Jeu de Cartes, a dancing gentleman in Manon, the Russian Dance in Kevin McKenzie's The Nutcracker, the Mouse King and the Russian Dance in Alexei Ratmansky's The Nutcracker, Paris in Romeo and Juliet, a Fairy Cavalier, the Spanish Prince and the Wolf in The Sleeping Beauty, Apollo in Sylvia, leading male roles in Antony Tudor's Continuo and Kirk Peterson's Amazed in Burning Dreams and roles in Black Tuesday, Duets, Everything Doesn't Happen at Once, Gong, Jardin aux Lilas, Raymonda Divertissements and Thirteen Diversions.
He created the role of Sebastian in Alexei Ratmansky’s The Tempest.
In 2007, Mantei danced the peasant pas de deux in Giselle with the National Ballet of Canada.
Mantei continues his studies with Maggie Black.
Mantei has choreographed Armaments and Stare Decisis for ABT's Innovation Initiatives in 2010 and 2014, as well as works for Columbia Ballet Collaborative, New York Theatre Ballet and Ensemble for the Romantic Century.
Mr. Mantei's performances with American Ballet Theatre are sponsored by Susan Winokur and Paul Leach.