Tom Hansen, president of TM Advertising, and Jim Walker, president and executive creative director of Sedgwick Rd., announced the merger of the two agencies, which will operate under the TM name until a new name is unveiled. Hansen will serve as president, and Walker as chief creative officer of the united agencies, which are part of the Interpublic Group. ... Brand studio Trumpet added seven new staff members to its New Orleans headquarters and promoted one. Now onboard are Calvin Ho, Michael Karnjanaprakorn, Debbie Koppman, Ashley Owens, Reid Stone, Mark Taylor and Shaun Walker. Meanwhile, Tiffany Starnes was promoted to brand strategist. ... Tabletop director Greg Ramsey joined Curious Pictures. ... Oil Factory signed Peruvian director Creature. ... Visual effects firm Guava welcomed animator/designer Jamie Collins to its roster.