Arielle-Mesirow 1APA - Executive Portraits Photo by Craig T. Mathew/Mathew ImagingLess than a month after promoting four coordinators to agent, APA has hired a pair of new ones. Michael Kirschner joins the agency in its Physical Production department, and Arielle Mesirow will work on the Comedy/Talent side. Kirschner began his career at ICM then moved to Paradigm to oversee commercials for their below-the-line clients. He will focus on integrating production and literary clients across advertising and marketing campaigns. Mesirow started at Endeavor and continued working in WME’s talent department before joining APA, where she reports to Ryan Martin and Mike Berkowitz.

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