[6] In 2008, he created, directed, and hosted a weekly, international variety show called Foreign Affairs, which started as a speakeasy in the loft of an artist collective in New York's Chinatown[7][8] before moving on to limited runs at the Gershwin Hotel and a supper club in Soho.

[9] Foreign Affairs culminated with a year-long residency in the lounge at the Night Hotel in Times Square, produced by Lee Chappell and co-hosted by singer Lady Rizo.

[15] He staged his first opera, Die Fledermaus, with the Kitchener-Waterloo Symphony conducted by Edwin Outwater in 2016, and in 2018 he directed and hosted the orchestra's production of Carmen, under the baton of its new music director, Andrei Feher.

[16][17] Later that year, En Piste, the Canadian National Circus Alliance based in Montreal, invited Isengart to teach a group workshop about the "Art of the MC".

[1] In the 2000s he created the persona of the Foodcommander for a YouTube miniseries,[22] wrote a food blog for The Huffington Post,[23] and, in 2018, authored a series of articles and a cooking advice column for Slate.