Greg Keller has originated roles in plays by Suzan-Lori Parks, Stephen Adly Guirgis, Amy Herzog, Branden Jacobs-Jenkins, Sarah Ruhl, Ayad Akhtar, Richard Greenberg, Clare Barron, Abe Koogler, Julia Cho, Moises Kauffman, Theresa Rebeck, Mara Nelson-Greenberg, Jordan Harrison, Jenny Schwartz, Daniel Goldfarb, Sheila Callaghan, Melissa Ross, Zayd Dohrn, Larissa Fasthorse, David Grimm, Rachel Bonds, Sam Marks, and Robert O’Hara. He was a Lila Acheson Wallace Playwriting Fellow at The Juilliard School where he was a two-time recipient of the Lecomte Du Nouy priz