Mr. Gournisht is a recurring character in Some Assembly Required that appears in Lobster Trap, Flycycle, and Rocket with a Pocket. He is a Meesketanian born man who is fluent in both Meesketanian and English. Mr. Gournisht is deeply in love with Mrs. Bubkes, but has no interest in Candace Wheeler.
- Mr. Gournisht is portrayed by Norwegian actor Nils Hognestad.
- Mr. Gournisht is one of the only characters to stop Mmmboing from moving, however it was only temporary.