GroupM named Dominic Proctor, CEO of Mindshare Worldwide, as president of GroupM, a new position.

Arnold Worldwide hired Patricia A. Clifford as global chief talent officer.

Angel Annussek has been promoted to vice president of original programming for truTV.

Yahoo’s Marketing Solutions Leadership Team has appointed MaryBeth Malcolm as senior director, Yahoo category development and marketing solutions; Debbie Menin as category lead – entertainment and travel; and Karina Montgomery as category lead – CPG/FMCG and Health.

Billy Seabrook was named chief creative officer for True Action Network, North America.

Engauge hired Teresa Caro as vice president of social marketing.

Daniel Aversano has joined Turner Broadcasting System as vice president of advertising sales research.

LKH&S hired James Goldman as senior account director.

Motion Theory added Swedish team Mans Marlind and Bjorn Stein to its directorial roster.

Involved Media hired Jonathan Penn as senior vice president of national sales. Penn most recently served as vice president of national sales for Magnetic, a search retargeting company.