- Jack Quaid
- Ben
- Maya Erskine
- Alice
- Beck Bennett
- Matt
- Jessy Hodges
- Amanda
- John Lyke
- Pete
- Leah Henoch
- Kelly
- Emma Koenig
- Anne
- Brianne Howey
- Jess Ramsey
- Zachary Read
- Andy
- Arrow Meister
- Guy
- Cadence Marmet
- Alec
- Perrey Reeves
- Gina
- Ed Begley Jr.
- Chuck
- Christine Bullen
- Passive Agressive Maid of Honor
- Felisha Cooper
- Kara
- Aaron Schroeder
- Unprepared Best Man
- Jennifer Bartels
- Ellie
- Scarlett Bermingham
- Maggie
- Jeff Ward
- Trevor
- Nick Reinhardt
- Paul
- Kiersten Armstrong
- Marissa
- Rachelle Carson-Begley
- Janice
- Tom Virtue
- Officiant
- Finn Wittrock
- Steve
- Ken Koyama
- Funny Japanese Uncle
- Dave Theune
- Wacky Photographer
- Patrick Woodall
- Josh
- Brian McElhaney
- Martin the Bartender
- Anna Konkle
- Jenna
- Alex Anfanger
- Derrick
- Joe Bays
- Uncle Davis
- Bart McCarthy
- Groundskeeper
- Emma Bell
- Perfect Maid of Honor
- Max Jenkins
- Nick
- Brandon Kyle Goodman
- Brett
- Rosalind Chao
- Angela
- Victoria Park
- Lily Mori
- Tom Yi
- Mitch Mori
- Grant O'Brien
- Greg
- Caitlin McGee
- Jackie
- Jacob Perlin
- Rabbi
- Sam Zvibleman
- Happy Groom
- Anna Greenfield
- Happy Bride
- Betsy Sodaro
- Grumpy Maid of Honor
- Jackie Cohn
- Unimpressed Guest
- Michael Goldberg
- Excuse me Guest
- Rhomeyn Johnson
- Earnest Father
- Jaxy Boyd
- Receptionist
- Maya Kazan
- Carolyn
- Jon Bass
- Cartelli
- Time Winters
- Mr. Riccardi
- Tim Chiou
- Nate
- Allan Havey
- Hannon
- Percy A. Smith
- Joe
- Anna Mhairi
- Julia (Bride)
- Obada Adnan
- (uncredited)
- Laura Juliet Ford
- Bridesmaid
- Kelsey Kummerl
- Wedding Guest
- Katie Rose Law
- Friendly Younger Sister
- Antonio Rosa
- Country Wedding Guest
- Katerina Vlasenko
- Bridesmaid
- Rachael Wotherspoon
- Bridesmaid
