Atmosphere BBDO hired WARREN GRIFFITHS as group account director; DOMINIK VON JAN as director, strategic planner, strategy & analysis; and BRIAN HOLLYFIELD as chief operating officer.

AOL's Platform-Anamed MARGEE HOLLAND as account director for Los Angeles.

Kilgannon promoted GARY M. SAYERS, JR. to vice president, account director and hired MARGOT BODZY as media planner.

Reprise Media promoted JOSH DWIGGINS and CHASE WELLS to senior account directors.

Travel Ad Network hired ANDREW (DREW) PODELLA as business development manager; SARA EADERasa publisher account manager; and ABIGAIL LANE WHITMER as an account manager.

TAXI Toronto hired DARREN CLARKE and GARY WESTGATE as creative directors; PETER GOMES as associate creative director; and JONO HOLMES and CHRIS DAVIES as senior writers.

Cossette Communications named BILL OBERLANDER as chief creative officer. He was most recently executive creative director at Ogilvy and McCann, after spending 11 years at kirshenbaum bond + partners as executive creative director.

TM Advertising hired NATE CHRISTMAN as an art director. Previously, Christman was at Fallon Worldwide, working on brands including Equinox Fitness, NBC, NYSE and Traveler’s Insurance.

FRANKLIN TIPTON was promoted to creative director at Goodby Silverstein & Partners. In his new post, Tipton will oversee the Sprint account.

MTV Networks International named BRUCE GILLMER as senior vice president of talent and music for MTVNI. Most recently, Gillmer served as senior vice president of music/music …