The pair join from Abbott Mead Vickers BBDO and Adjust Your Set respectively.
They become Mcgarrybowen’s most senior planners following the departure of Kevin Chesters, who left earlier this year to become chief strategy officer at Ogilvy & Mather.
Gallery and McKibbin are the first senior appointments to be made by Mcgarrybowen’s new chief executive, Jason Gonsalves, who joined the agency earlier this summer from Bartle Bogle Hegarty, where he was joint chief strategy officer.
The hires complete Mcgarrybowen’s senior line-up, which includes executive creative directors Angus Macadam and Paul Jordan.
Gonsalves said: "In uncertain times, strategy is more important than ever but it is in need of radical reinvention. By colliding their respective skills – Rory in real brand and advertising experience and Chris in data, technology and content – we are making a big step change for the agency."
Gallery was board strategy director at AMV and, before that, worked at Host in his native Australia. McKibbin was senior planner at Adjust Your Set and has previously worked at J Walter Thompson.