Literally, Right Before Aaron

Charlotte McKinney as Charlotte Ser'Darius Blain as Wedding DJ Babar Peerzada as Chaplin (Lead Busboy) John Cho as Mark Dana Delany as Wendy (Allison's Mom) Manu Intiraymi as Lee Parvesh Cheena as Rohan Emerson Min as Emerson Patrick Rafferty as Elevator Tourist (uncredited) Ryan Hansen as Aaron Cobie Smulders as Allison Peter Gallagher as Orson Schwartzman Lea Thompson as Deb (Adam's Mom) Ginger Gonzaga as Helen Charlyne Yi as Claire Dov Tiefenbach as David Adam Rose as Alan (Co-Worker) Malcolm Barrett as Greg Ivy George as Ivy (Flower Girl) Ashley Platz as Engaged Couple (uncredited) Justin Long as Adam Rick Overton as Dean (Allison's Dad) Sam Hennings as Priest (Father Jack) Luis Guzmán as Federico Briga Heelan as Julie Vella Lovell as Jen (uncredited) Kristen Schaal as Talula Brady Rubin as Grandma Rose

Patrick Rafferty Thanks Ginger Gonzaga Thanks Bianca Smith Production Assistant Vella Lovell Thanks Tim Mikulecky Stunt Coordinator Nancy Leopardi Producer Leslie Shatz Sound Re-Recording Mixer Ross LaManna Thanks Ryan Eggold Producer, Musician, Original Music Composer, Director, Writer, Editor Jay Cohen Thanks Ross Kohn Producer Cassandra Kulukundis Casting, Producer Brandon Riley First Assistant Director Brooke Mulkins Costumer James Parnell Assistant Sound Editor André Gower Location Scout Rachel Antonoff Thanks