As expected at the end of the earlier post, I have found my copy of the detailed programme of the performance of “MSI: The anatomy of integers and permutations”, and I can therefore give the names of the actors involved.
First, sitting on chairs on the stage, from left to right in the picture,
we have:
* Lorraine Wochna, as The Narrator;
* Emily Ann Barth, as Emmy Germain;
* Matthew Boston, as Professor K.F. Gauss;
* Mike Mihm (replacing Jay Stratton at the last minute), as Sergei Langer;
* Carl Wallnau, as Detective Jack Newman (or von Neumann; the title page of the programme uses the latter spelling, but the inside description spells it Newman);
Sitting on the stairs in front of the stage is
* Matthew Archambault, as Barry Bell;
Standing behind the readers, on the stage, are Jessica Manley, Michael Spencer and (not visible) Jennifer Granville.
Also absent are two important characters with silent role: Joe Ten Dieck and Count Nicholas Bourbaki.