Peter:

A man in his early forties, neither fat nor gaunt, neither handsome nor homely.  He wears tweeds, smoke a pipe, carries horn-rimmed glasses.  Although he is moving into middle age, his dress and his manner would suggest a man younger.

Jerry:

A man in his late thirties, not poorly dressed, but carelessly.  What was once a trim and lightly muscled body has begun to go to fat; and while he is no longer handsome, it is evident that he once was.  His fall from physical grace should not suggest debauchery; he has, to come closest to it, a great weariness.