Below is a list of feature films as well as television films that John has starred in. They are listed in reverse-chronological order, with the most recent ones last. Click on the titles to read more about each project individually.
| 1997 | Wag the Dog | Aide #3 |
| 1997 | Shopping for Fangs | Clarence |
| 1998 | Yellow | Joey |
| 1999 | American Beauty | Sale House Man #1 |
| 1999 | Bowfinger | Nightclub Cleaner |
| 1999 | American Pie | MILF Guy #2 |
| 2000 | The Flintstones in Viva Rock Vegas | Parking valet |
| 2001 | Delivering Milo | Mr. Hugo |
| 2001 | American Pie 2 | John (MILF Guy #2) |
| 2001 | Evolution | Student |
| 2001 | Down to Earth | Phil Quon |
| 2001 | Pavilion of Women | Fengmo Wu |
| 2002 | Better Luck Tomorrow | Steve Choe |
| 2002 | Solaris | DBA Emissary #1 |
| 2002 | Big Fat Liar | Dustin Wong |
| 2003 | American Wedding | John |
| 2004 | In Good Company | Petey |
| 2004 | Harold & Kumar Go to White Castle | Harold Lee |
| 2004 | See This Movie | Larry Finkelstein |
| 2006 | American Dreamz | Frank Ittles |
| 2006 | Bickford Shmeckler’s Cool Ideas | Tom |
| 2007 | West 32nd | John Kim |
| 2007 | Smiley Face | Mike |
| 2008 | Nick and Norah’s Infinite Playlist | Hype Man |
| 2008 | Harold & Kumar Escape from Guantanamo Bay | Harold Lee |
| 2009 | Star Trek | Hikaru Sulu |
| 2009 | Saint John of Las Vegas | Carnival Human Torch |
| 2011 | A Very Harold & Kumar 3D Christmas | Harold Lee |
| 2012 | American Reunion | John |
| 2012 | Total Recall | Bob McClane |
| 2013 | Identity Thief | Daniel Casey |
| 2013 | Star Trek Into Darkness | Hikaru Sulu |
| 2015 | Zipper | EJ |
| 2015 | Grandma | Chau |
| 2016 | Get a Job | Brian Bender |
| 2016 | Star Trek Beyond | Hikaru Sulu |
| 2016 | The Hindenburg Explodes! | Reggie |
| 2016 | Quantum Is Calling | John Cho |
| 2017 | Columbus | Jin |
| 2017 | Gemini | Detective Edward Ahn |
| 2017 | Literally, Right Before Aaron | Mark |
| 2017 | A Happening of Monumental Proportions | Mr. Ramirez |
| 2018 | Caller ID: Entity | – |
| 2018 | Searching | David Kim |
| 2018 | Mirai | Father (English version, voice) |
| 2018 | The Oath | Peter |
| 2019 | The Grudge | Peter Spencer |
| 2019 | Wish Dragon | Long (Voice) |
| 2019 | Between Two Ferns: The Movie | Himself |
| – | Tigertail | Grover (Voice) |
| – | Untitled Star Trek Sequel | Sulu |
| – | Connoisseur | – |
| 2020 | Grudge | – |
| – | Connoisseur | – |