Digitas—Digitas appointed Doug Ryan managing director of its Chicago office. Ryan was previously principal at Rebar Partners and has held senior positions at BBDO, Y&R and Leo Burnett.
Euro RSCG—Euro RSCG Chicago has named Jason Peterson chief creative officer, effective Dec. 1. Peterson most recently served as executive creative director at Translation, New York.
Pereira & O'Dell—Pereira & O'Dell, San Francisco, has appointed Paul Stechschulte executive creative director. He was previously group creative director at Goodby Silverstein & Partners, San Francisco.