Tremor Video promoted Abbey Thomas to vice president of national entertainment sales.

Brokaw hired Troy Walker to lead the agency’s new retail marketing arm.

Starcom MediaVest Group promoted Chris Boothe to chief executive officer of Spark.

Energy BBDO hired Giovanni Settesoldi and Luissandro Del Gobbo as senior vice president, creative directors.

Ektron hired Tim McKinnon as chief technology officer.

SS+K hired Sasha Smith as vice president, group director in the Consulting Group, a new position.

Wunderman Seattle has promoted Michael Joseph from group account director to the post of client services director.

Jamia Gaffney has been named director of business development at NorBella. Previously, she was marketing specialist at LivingSocial.

SapientNitro hired Tim Allen as creative director, experience design.

Rick Corteville joined Luxus Inc as CEO.