David Frankel Director Meryl Streep Miranda Actor Anne Hathaway Andy Actor Emily Blunt Emily Actor Stanley Tucci Nigel Actor Patrick Brammall Peter Actor B.J. Novak Jay Actor Simone Ashley Amari Actor Justin Theroux Benji Actor Kenneth Branagh Stuart Actor Lucy Liu Sasha Actor Tracie Thoms Lily Actor Tibor Feldman Irv Actor Lady Gaga Self Caleb Hearon Charlie Actor Helen J. Shen Jin Actor Pauline Chalamet Ilana Actor Aline Brosh McKenna Screenwriter, Executive Producer Wendy Finerman Producer Michael Bederman Executive Producer Karen Rosenfelt Executive Producer Florian Ballhaus Cinematographer Andrew Marcus Film Editing Theodore Shapiro Original Music Jess Gonchor Production Design Molly Rogers Costume Design Ellen Lewis Casting Shayna Markowitz Casting