Theatre Owned / Operated by Roundabout Theatre Company (Todd Haimes: Artistic Director; Harold Wolpert: Managing Director; Julia C. Levy: Executive Director; Sydney Beers, General Manager)

Produced by Roundabout Theatre Company (Todd Haimes: Artistic Director; Harold Wolpert: Managing Director; Julia C. Levy: Executive Director; Sydney Beers, General Manager); Produced in association with Ryan Murphy

Written by Eugene O'Neill

Directed by Jonathan Kent; Associate Director: Gabriel Vega Weissman

Scenic Design by Tom Pye; Costume Design by Jane Greenwood; Lighting Design by Natasha Katz; Sound Design by Clive Goodwin; Hair and Wig Design by Tom Watson; Makeup Design by Tommy Kurzman; Associate Costume Design: Daniel Urlie; Associate Lighting Design: Aaron Spivey; Associate Sound Design: Emma Wilk; Assistant Scenic Design: Evan Adamson and Frank McCullough

"Long Day's Journey Into Night" General Manager: Denise Cooper; Roundabout Associate Managing Director: Steve Dow; Company Manager: Lee Poulin

Production Manager: Aurora Productions; Production Stage Manager: Peter Lawrence; Stage Manager: Stephen Milosevich

Casting: Jim Carnahan, C.S.A. and Carrie Gardner, C.S.A.; Press Representative: Polk & Co.; Advertising: SPOTCo, Inc.; Interactive Marketing: Situation Interactive; Dialect Coach: Stephen Gabis; Fight direction by J. David Brimmer; Roundabout Director of Marketing & Audience Development: Robert Sweibel; Roundabout Director of Development: Lynne Gugenheim Gregory; Roundabout Founding Director: Gene Feist; Roundabout Adams Associate Artistic Director: Scott Ellis; Photographer: Joan Marcus