Oblong's book, Creepy Susie and 13 Other Tragic Tales for Troubled Children, consists of 13 short stories of adult-oriented humor. Many of the characters from his TV series The Oblongs first appear in this book, including Milo and Creepy Susie. A self-published sequel, 13 More Tragic Tales for Ugly Children, is available from his website.

He has also self-published three collections of drawings: Angus Oblong Random Drawings Book One, Book Two and Book Three.

His television series, The Oblongs, airing originally on The WB and in syndication on Adult Swim. The complete series was released on DVD.

Oblong wrote, directed, and produced Deliriously Jen, a television pilot that aired on Comedy Central and was shown at several film festivals in 2005.

The Victorian Hotel, a play written by Oblong, and created in association with Rogue Artists Ensemble, featuring many of his characters as puppets, played October through December 2006 at the Powerhouse Theatre in Santa Monica, California.

Oblong also provides the voice of Joey on Nickelodeon's television series, The Mighty B!.

Oblong was born in Sacramento, California and attended the University of California, Berkeley for a couple of years. He moved to Los Angeles, California at the request of his agent when a "bidding war" was underway over whether FOX, The WB, or Disney would produce what became The Oblongs. When his work began garnering attention from the press, Oblong began wearing "thick clown makeup and a bulbous, red plastic nose" in public places, a practice he has continued into 2010, when LA Weekly named him one of the L.A. People 2009.