| Title | Year | Status | Character |
|---|
| Idols | 2005 | TV Series writer - 1 episode | |
| Doctor Who | 2005 | TV Series writer - 1 episode | |
| Ice Princess | 2005 | writer: "Toxic" | |
| Taiko: Drum Master | 2005 | Video Game writer: "Toxic" | |
| Britney Spears: Greatest Hits - My Prerogative | 2004 | Video writer: "Toxic" | |
| Karaoke Revolution Volume 2 | 2004 | Video Game "Toxic" | |
| Britney Spears: In the Zone | 2004 | Video documentary writer: "Toxic" | |
| Britney Spears Live from Miami | 2004 | TV Movie documentary writer: "Toxic", "Showdown" - uncredited | |
| What a Girl Wants | 2003 | writer: "Somebody Stop Me" | |
| Deutschland sucht den Superstar | 2002 | TV Series writer - 1 episode | |
| Rugrats in Paris: The Movie | 2000 | "You Don't Stand a Chance" | |
| Snow Day | 2000 | writer: "The Reason Why" | |
| Children in Need | 2016 | TV Series writer - 1 episode | |
| Conan | 2016 | TV Series writer - 1 episode | |
| The Edge of Seventeen | 2016 | writer: "Genghis Khan" - as Christian Lars Karlsson | |
| XOXO | 2016 | writer: "GoldDust", "Peanut Butter Jelly", "Make Me Feel" | |
| The Late Late Show with James Corden | 2016 | TV Series writer - 1 episode | |
| Looking: The Movie | 2016 | TV Movie writer: "Piece of Me" - uncredited | |
| 2016 Billboard Music Awards | 2016 | TV Movie writer: "Toxic" | |
| Britain's Got More Talent | 2016 | TV Series writer - 1 episode | |
| Jane the Virgin | 2015 | TV Series writer - 1 episode | |
| S.O.S.: Mulheres ao Mar 2 | 2015 | writer: "Toxic" | |
| Glastonbury 2015 | 2015 | TV Series writer - 1 episode | |
| Paper Towns | 2015 | writer: "RUNAWAY U & I SVIDDEN & JARLY REMIX" - as Christian Lars Karlsson | |
| Ellen: The Ellen DeGeneres Show | 2015 | TV Series writer - 1 episode | |
| Katy Perry: The Prismatic World Tour | 2015 | TV Movie writer: "Love Me" | |
| Jennifer Lopez: Dance Again | 2014 | TV Movie documentary writer: "Brave" | |
| Vai que Cola | 2014 | TV Series writer - 1 episode | |
| Tu cara me suena - Argentina | 2014 | TV Series writer - 1 episode | |
| Glee | 2010-2014 | TV Series writer - 2 episodes | |
| Obscurity | 2014 | Short writer: "Animal" | |
| I Am Britney Jean | 2013 | TV Movie documentary writer: "Do Somethin'", "Freakshow", "Piece of Me", "Toxic" | |
| Amor & Sexo | 2013 | TV Series writer - 1 episode | |
| Mulheres Ricas | 2013 | TV Series writer - 1 episode | |
| The X Factor | 2007-2012 | TV Series writer - 4 episodes | |
| Dancing with the Stars | 2005-2012 | TV Series writer - 2 episodes | |
| Sarah G Live | 2012 | TV Series writer - 1 episode | |
| Snabba cash II | 2012 | writer: "Devil's Work Alex Metric Remix " | |
| Suits | 2012 | TV Series writer - 1 episode | |
| So You Think You Can Dance | 2010-2012 | TV Series writer - 3 episodes | |
| Les infidèles | 2012 | writer: "Black and Blue "Savage Skulls Remix | |
| RuPaul's Drag Race | 2012 | TV Series writer - 1 episode | |
| Simon Killer | 2012 | writer: "Animal" | |
| Britney Spears Live: The Femme Fatale Tour | 2011 | TV Movie writer: "Piece of Me", "How I Roll", "Trouble For Me", "Toxic" | |
| Dance Central 2 | 2011 | Video Game writer: "Toxic" | |
| P.O.V. | 2011 | TV Series documentary writer - 1 episode | |
| Queens of Pop | 2011 | TV Series documentary writer - 1 episode | |
| Crazy, Stupid, Love. | 2011 | writer: "Animal Remix by Mark Ronson" | |
| Bridesmaids | 2011/I | writer: "I've Just Begun Having My Fun" - as Bloodshy | |
| Friday Night Dinner | 2011 | TV Series writer - 6 episodes | |
| 20 to 1 | 2011 | TV Series documentary writer - 1 episode | |
| The Interrupters | 2011 | Documentary writer: "Piece of Me" | |
| If a Tree Falls: A Story of the Earth Liberation Front | 2011 | Documentary writer: "Toxic" | |
| Exporting Raymond | 2010 | Documentary writer: "Toxic" | |
| You Again | 2010 | writer: "Toxic" 2003 | |
| The Sons of Tennessee Williams | 2010 | Documentary writer: "You want a Piece of Me" | |
| Chatroom | 2010 | writer: "Animal" Mark Ronson remix - as Karlsson | |
| Skins | 2010 | TV Series writer - 1 episode | |
| CHIKARA Through Savage Progress Cuts the Jungle Line | 2010 | Video writer: "Toxic" | |
| The Phantom Menace Review | 2009 | Video writer: "Toxic" - uncredited | |
| Grand Theft Auto IV: The Ballad of Gay Tony | 2009 | Video Game writer: "Animal Acapella" | |
| Britney: For the Record | 2008 | TV Movie documentary writer: "Trouble", "Toxic", "Unusual You" | |
| The Real Hustle | 2008 | TV Series documentary writer - 3 episodes | |
| The Hills | 2007-2008 | TV Series writer - 2 episodes | |
| Chuck | 2007 | TV Series writer - 1 episode | |
| Knocked Up | 2007 | writer: "Toxic" | |
| Madonna: The Confessions Tour Live from London | 2006 | TV Movie documentary writer: "Like It or Not" | |
| Life on Mars | 2006 | TV Series writer - 1 episode | |
$10 Million
