1988 Clara’s Heart David Hart
1988 Purple People Eater Billy Johnson
1995 Animal Room Arnold Mosk
1997 Starship Troopers Carl Jenkins
1998 The Proposition Roger Martin
2000 The Next Best Thing David
2002 The Mesmerist Benjamin
2002 Undercover Brother Lance
2004 Harold & Kumar Go to White Castle Neil Patrick Harris
2008 Harold & Kumar Escape from Guantanamo Bay Neil Patrick Harris
2008 +Galeria Beyond All Boundaries 1st Lt. David Hettema (voice)
2008 Justice League: The New Frontier Barry Allen/The Flash (voice)
2009 Cloudy with a Chance of Meatballs Steve (voice)
2010 Cats & Dogs: The Revenge of Kitty Galore Lou the Beagle (voice)
2010 The Best and the Brightest Jeff
2010 Batman: Under the Red Hood Dick Grayson/Nightwing (voice)
2011 Beastly Will Fratalli
2011 The Smurfs Patrick Winslow
2011 A Very Harold & Kumar 3D Christmas Neil Patrick Harris
2011 The Muppets Himself
2012 American Reunion Celebrity Dance-Off Host
2013 The Smurfs 2 Patrick Winslow
2013 Cloudy with a Chance of Meatballs 2 Steve the Monkey (voice)
2014 A Million Ways to Die in the West Foy
2014 Gone Girl Desi Collings
2017 Downsizing


1988 Too Good to Be True Danny Harland
1989 Hallmark Hall of Fame Lonnie Tibbetts
1989 B.L. Stryker Buder Campbell
1989 Cold Sassy Tree Will Tweedy/Narrator
1989 Home Fires Burning Lonnie Tibbits
1989–1993 Doogie Howser, M.D. Douglas “Doogie” Howser
1990 The Earth Day Special[67] Doogie Howser
1991 Stranger in the Family Steve Thompson
1991 Blossom The “Charming” Derek Slade
1991 The Simpsons Himself as Bart Simpson (voice)
1992 Roseanne Dr. Doogie Howser
1992 Captain Planet and the Planeteers Todd Andrews (voice)
1992 Capitol Critters Max (voice)
1993 Quantum Leap Mike Hammond
1993 Murder, She Wrote Tommy Remsen
1993 A Family Torn Apart Brian Hannigan
1994 Snowbound: The Jim and Jennifer Stolpa Story Jim Stolpa
1995 The Man in the Attic Edward Broder
1995 Not Our Son Paul Kenneth Keller
1995 My Antonia Jimmy Burden
1995 Legacy of Sin: The William Coit Story William Coit
1996 The Outer Limits Howie Morrison
1997 Homicide: Life on the Street Alan Schack
1998 The Christmas Wish Will Martin
1999 Joan of Arc The Dauphin
1999–2000 Stark Raving Mad Henry McNeeley
2000 Will & Grace Bill
2001 Static Shock Johnny Morrow/Replay (voice)
2001 Son of the Beach Loverboy
2001 The Legend of Tarzan Moyo (voice)
2001 Ed Joe Baxter
2001 The Wedding Dress Travis Cleveland
2002 Touched by an Angel Jonas
2002 Justice League Ray Thompson (voice)
2003 Boomtown Peter Corman
2003 Spider-Man: The New Animated Series Peter Parker/Spider-Man (voice)
2004 Law & Order: Criminal Intent John Tagman
2005 Numb3rs Ethan Burdick
2005 Jack & Bobby Prof. Preston Phelps
2005 The Christmas Blessing Nathan Andrews
2005–2014 How I Met Your Mother Barney Stinson
2006 Me, Eloise (voice)
2007–2009 Family Guy Barney Stinson (voice)
2008 Sesame Street The Fairy Shoeperson
2009 Saturday Night Live Himself (host)
2009 Batman: The Brave and the Bold The Music Meister (voice)
2009 Carrie Underwood: An All-Star Holiday Special Ace (voice)
2009–2012 Robot Chicken Various roles (voice)
2009 7th Annual TV Land Awards Himself (host)
2009 63rd Tony Awards Himself (host)
2009 61st Primetime Emmy Awards Himself (host)
2009 Yes, Virginia Dr. Philip O’Hanlon (voice)
2010 Glee Bryan Ryan
2010–2015 The Penguins of Madagascar Dr. Blowhole (voice)
2010 2010 Spike Video Game Awards Himself (host)
2011 Take Two with Phineas and Ferb Himself
2011 Brain Games Narrator (voice)
2011–2013 Adventure Time Prince Gumball (voice)
2011 65th Tony Awards Himself (host)
2012 66th Tony Awards Himself (host)
2013 67th Tony Awards Himself (host)
2013 65th Primetime Emmy Awards Himself (host)
2013 Disney Parks Christmas Day Parade Himself (host)
2014 Under the Gunn Himself (guest judge)
2014 RuPaul’s Drag Race Himself (guest judge)
2015 American Horror Story: Freak Show Chester Creb
2015 87th Academy Awards Himself (host)
2015 Ant and Dec’s Saturday Night Takeaway Himself (guest announcer)
2015 America’s Got Talent Himself (guest judge)
2015 Best Time Ever with Neil Patrick Harris Himself (host)
2017–present A Series of Unfortunate Events Count Olaf
2017 Mystery Science Theater 3000 Neville LaRoy


Ano Titulo Personagem Notas
1997 Rent Mark Cohen National Tour
1998 Romeo and Juliet Romeo Montague Old Globe Theatre
2001 Sweeney Todd Tobias Ragg San Francisco Symphony Orchestra concert version
2002 Proof Hal Manhattan Theatre Club
2003 Cabaret Emcee Stephen Sondheim Theatre
2004 The Paris Letter Young Anton / Burt Sarris Roundabout Theatre
2004 Assassins Lee Harvey Oswald / The Balladeer Roundabout Theatre
2005 Tick, Tick… BOOM! Jon Menier Chocolate Factory
2006 All My Sons Chris Keller Geffen Playhouse
2006 Amadeus Wolfgang Amadeus Mozart Hollywood Bowl
2010 Rent N/A Directed
Hollywood Bowl
2011 Company Robert New York Philharmonic Concert Version
2011 A Snow White Christmas The Magic Mirror El Portal Theater
2014 Nothing to Hide[68] N/A Director
Romulus Linney Courtyard Theatre
2014 Hedwig and the Angry Inch Hedwig Belasco Theatre



2008 Dr. Horrible’s Sing-Along Blog Dr. Horrible/Billy 3 episodes
2008 Prop 8: The Musical A Very Smart Fellow Short film
2012 Neil’s Puppet Dreams Neil Patrick Harris 7 episodes; also co-creator, writer and executive producer

Video games

2008 Saints Row 2 Veteran Child (voice)
2009 Eat Lead: The Return of Matt Hazard Wallace “Wally” Wellesley (voice)
2010 Rock of the Dead Unnamed character (voice)
2010 Spider-Man: Shattered Dimensions Peter Parker/Spider-Man (voice)
2013 Saints Row IV Veteran Child (voice)[69]