With 24 the youngest.
Others are ... lemme think ... I believe 28, 35, 40 and one somewhere between the last two.
When playing you don't really see big differences between the ages of the players. The only difference I see is how long the Players plays RPG's.
However, when it comes to "Off-Topic"-Talk such as other hobbies, movies, music or ... personal stories about the French revolution ... there definitely exists somewhat of a gap between me and the oldest. x) (just for completion *sarcasm*)