The duo join from TMW, where they worked on accounts including Pimm's, Lynx and First Direct. They will both take the title of creative lead and report to the agency's managing director, Craig Wheeler.
The appointment follows the departure of WDMP's executive creative director, Gary Sharpen, in March.
The pair worked together at Rapier and Tequila before joining TMW in 2008. Their work includes a number of award-winning campaigns, including Lynx's "wake up and stay alert" activity.
Gavin Wheeler, the WDMP chief executive, said: "Tom and George bring with them a wealth of experience dealing with leading brands. Their fresh ideas, flair and creativity will be a welcome addition. We look forward to seeing them make their mark and helping to take the business to the next level."