Austin & Williams Taps Fisher to Head PR

Imre names Fred Hickman EVP, group account lead. Hickman joins Imre from Klick, an agency that works with life sciences companies... Residence, a global network of creative companies, brings on Julian McBride as head of communications, a newly created role... Sherlock Communications, which has offices in Bogotå, Buenos Aires, Mexico City, Rio de Janeiro, Sao Paulo and Santiago, appoints Bianca Boucault, Maria Amelia Costa and Patricia Zylberman as managing directors.

Nick Mammano, who was president/CEO of the New Jersey Sports and Exposition Authority, has rejoined Mercury Public Affairs as a managing director in its Saddle Brook office.

Seven Letter hires Allie Raffa, who was most recently White House correspondent for NBC News, as a senior director... Points of Light, an organization founded by President George H.W. Bush that is dedicated to volunteer service, names Jeff Zanelli as CMO... Frontieras North America, an energy and environmental technology company, appoints Nora Shepard as VP of communications.

Alcoa has named Emily Olson, who has more than 20 years of experience working in capital-intensive industries in the Americas, Europe and Asia, EVP & chief external affairs officer, effective April 6.

Longacre Square Partners has named Humza Vanderman partner and head of its London outpost as the financial communications firm expands into Europe.