“Improv With My Friends From Work” brings Saturday Night Live cast and writers into a live, unscripted format at NJPAC, with featured performer Ceara O’Sullivan. The show uses audience prompts and ensemble instincts rather than sketches, testing how SNL’s backstage sensibility holds up without edits or cameras. In the New York region, it sits in a long lineage of improv and late-night comedy talent circulating between clubs, studios, and theaters. The interest is in process: comedy made in real time, with visible risk and shared authorship.