Woohoo! I received a package with lots of newspaper clippings and two old POTO brochures. I figured I would already have the two brochures, but to my absolute delight they're new to me, so I've added both in to the site. Here are the cast lists.

The Phantom - Davis Gaines
Christine Daaé - Tracy Shayne
Raoul Vicomte de Chagny - Brad Little
M. Firmin - George Lee Andrews
M. André - Jeff Keller
Carlotta Giudicelli - Elena Jeanne Batman
Madame Giry - Leila Martin
Ubaldo Piangi - Frederic Heringes
Meg Giry - Tener Brown
Christine Daaé alternate - Laurie Gayle Stephenson
Small insert with images of Laurie Gayle Stephenson as Christine Alternate and Elena Jeanne Bateman and Patrick Jones as Carlotta and Piangi

Next is London April 1988 with:

The Phantom - Dave Willetts
Christine Daaé - Claire Moore
Raoul Vicomte de Chagny - Michael Ball
M. Firmin - Royce Mills
M. André - David Firth
Carlotta Giudicelli - Maria Moll
Madame Giry - Mary Millar
Ubaldo Piangi - John Aron
Christine Daaé alternate - Jan Hartley Morris