Duncan Pflaster has won awards for his plays The Underpants Godot, Messin’ With the Kid, The Tragedy of Dandelion, 1460 Sketches of Your Left Hand, The Empress of Sex, The Taint of Equality, Prince Trevor Amongst the Elephants; The Thyme of the Season, and Eternity: Time Without End. Other plays include The Starship Astrov (2010 Midtown International Theatre Festival, Winner Outstanding Supporting Actress, 2010 MITF Awards), Suckers, Ore, or Or, The Wastes of Time, Dik and Jayne Are Not The Same, the parallel universe cocktail party comedy Sleeping in Tomorrow (nominated for a 2004 Spotlight On award), Amazing Daedalus, book and lyrics for the pansexual soap opera musical Eskimo (music by Adam Rabin of the band Mailbox), and the drag queen Alice In Wonderland adaptation Wilder & Wilder.

His lesbian superhero one-act Dark Night of the Russet Rascal was produced by NewGround Theatre Collective as part of Clandestine (also in the 2010 Planet Connections Festivity- nominated for four PCTF awards, including Best Script (Short Form)). His one-act Patrick and Lisa's Wedding was produced September 2008 at DeBaun Center for the Performing Arts by The Theater Company as part of the Hudson County One-act Festival, and in April 2009 it was produced as part of an actor's showcase by StageRight Productions. Several of his short plays were produced as workshops by Where Eagles Dare in 2009-2010: the one page plays Your Favorite Things, Say Something Shocking (The Spit-Take Play), and Men in Towels, which will soon be published in a collection, and the 10-page plays Mine or Yours, (also produced in 2010 by Wisconsin's Stage Q as part of Queer Shorts 5) What I Like, (they kiss), and Prince Charming, Presented Without Comment. Duncan was chosen for the 2nd Small Pond Producer Sprint, where he developed his ten-minute plays The Fugly Train, First to Fall Asleep, and Hold thy Peace, Thou Knave. Hold Thy Peace, Thou Knave was produced again in 2008 by Spotlight On Productions for their Hallowe'en show, and in 2009 by Howling Moon Cab Company as part of The Play Plays in the Midtown International Theatre Festival. His Christmas play The Goose is Getting Fat was produced by World Players, Inc. December 2009 as part of their KICK IT! festival of holiday plays, and again in 2010 as part of the Digable Arts Festival in Hoboken, NJ.

He is part of the EMG Playwrights Group, and is listed on Doollee.com, as well as Wikipedia.

He has directed productions of Shoot the Playwright by Meri Wallace, Distracted by Matt Hoverman, As You Like It (Holla Holla Productions), Aria Da Capo (Debaun Center for the Performing Arts), What the Butler Saw (Florida Playwrights' Theatre- co-director), and others, including the first productions of many of his own plays.

Duncan has written music at Songfight, under the name Level Nivelo.

He is a featured performer at Ukulele Cabaret events in New York (video available at the site and at Ukulele Disco).

He is a frequent contributor to Overheard in New York, as well as Cap'n Wacky's Lists.

He has written theatre reviews for BroadwayWorld (Winning 2nd Place in Stage and Cinema's 2010 Theater Review Contest, for his review of Beowulf: A Thousand Years of Baggage) and the new-defunct HX magazine.

The P in his last name is silent, as in "Pfieffer" or "Pfister".