MediaVest USA elevated MARSTON ALLEN, MARLA KAPLOWITZ and PAM ZUCKER to executive vice president.

The VIA Group hired DAN O’DONNELL as a group strategy director. O’Donnell will be responsible for managing VIA’s TD Banknorth business.

MATTHEW O’GRADY was named president of Claritas, a service of The Nielsen Company that provides marketing information and target marketing services. He succeeds ROBERT NASCENZI, who resigned last month. O’Grady has been with Claritas since 1990, previously serving as executive vice president of sales and service, responsible for managing all client relationships.

CHRISTOPHER BARRY was promoted to senior vice president, digital media & business strategy at Sundance Channel. Barry joined Sundance Channel in 2003 as executive director, business planning and operations.

Hanger Network hired MATT LEVINE to lead its San Francisco operations. Most recently he was the western regional account executive for American Lawyer Media.

TOM FLYNN, formerly advertising director at Sales & Marketing Management magazine, is now the national advertising director at Golf Digest Digital.

TruePresence hired JOHN KIRBY as chief operating officer.

DAVID A. LINABURY, KAREN N. CAMPBELL, HELEN R. GILES and MAUREEN R. JOHNSTON have been named senior vice presidents and CASEY L. INGLE and CHRISTOPHER F. MORITZ have been named vice presidents at Campbell-Ewald.

The SMG Board of Directors has elected four MediaVest employees to senior vice president: KELLY ANDREWS, BRIAN CAHILL, ANDREW HEBDEN and DAVID SHIFFMAN, In addition KATHLEEN DUNDAS was elevated to vice president.

BEN FRUEHAUF was promoted to the position of creative director at Campbell Mithun. Fruehauf previously served as vice president/associate creative director.