Hailing from New York, Seth Koffler began his training at the age of six in the Riverdale YMHA Dance Program. In 2012, he was accepted into the Children’s Division of American Ballet Theatre’s Jacqueline Kennedy Onassis School on a full scholarship, learning from Franco De Vita, Melissa Bowman, Richard Bowman, Miklhail Ilyin, and Elizabeth Ferrell. He contributed his training through the graduated from that program in 2016 and continued his training with ABT’s JKO School in the Pre-Professional Division where he trained with Cynthia Harvey, Mikhail Ilyin, Robert La Fosse, and Ethan Stiefel. At the age of 10, Koffler danced various roles in Alexei Ratmansky’s production of The Nutcracker for American Ballet Theatre at the Brooklyn Academy of Music. In 2015, he performed the role of the Little Nutcracker Prince in the ABT’s production at the Segerstrom Center for the Arts in Costa Mesa, California. His ARB credits include The Nutcracker, Ethan Stiefel’s A Midsummer Night’s Dream, VARIANTS, Delibes Duet; Claire Davison’s Time Within A Time; as well as Ethan Stiefel and Johan Kobborg’s Giselle. In the summer of 2023, Koffler performed Grand Pas Classique at the Les Rayonnantes Festival in Perpignan, France.