Reporting to deputy chief executive Jan Wickham, Myers will be charged with media relations, marketing, e-comms, internal comms, design procurement and residents' magazine WFM, leading a team of around 24.
'As with all local authorities, there will be a heavy emphasis on stakeholder relations, particularly working with the other 2012 host boroughs and government agencies,' Myers said.
Waltham Forest is contesting the grading of its progress in the Audit Commission's new Comprehensive Performance Assessment.
It is the second time Waltham Forest has filled the role, after the last candidate, Newham Council external comms manager Nick Williams, reneged on his decision to take the position (PRWeek, 10 June).
Brook continued in the role until his December exit.
The U-turn came just a few days after the 2012 games were awarded to London. While both boroughs' facilities will be used during the Games, Newham will host more of the Olympic site.
Waltham Forest interim head of comms is former LGComms secretary-general Kevin Wilson.