Far from being a leading voice in the peace process, his government has been a bit-player. World leaders and United Nations Secretary General Ban Ki-moon will be at this summit in London.
He and German Chancellor Angela Merkel have taken the lead in the EU in de-escalating the conflict and formulating peace proposals, relegating Cameron to being a bit-player of little relevance.
While Treasure Beach appears no more than a bit-player for the Investec Derby after making hard work of the MBNA Chester Vase, Await The Dawn looked an older horse of considerable promise when strolling home in the Betfair Huxley Stakes.
It's also nice to have a heroine who buys her new outfit at Rackham's instead of some London store, although Birmingham is pretty much a bit-player in this book.
"It seems as if Donald is to be a bit-player in Labour's attacks on the SNP, as London-based politicians like Gordon Brown and John Reid take centre stage."
A patient bit-player for most of the season, Fabulous Flournoy was let off the leash in last night's Budweiser league game at the NIA, and repaid his coach's faith by helping seal victory in the type of nail-biting encounter that has lately been the bane of Bullets' life.
Bit-player Baldry, dogged by injury this season and making his first start since October, bagged the early decider to a lively match which should have produced a hatful of goals at both ends.