The character roles for the "Trainspotting 2" gang in Tim Burton's / Scorcese's "Gotham: chapter three"...

Ewen Bremer: Trotsky

Johnny Lee Miller: Zinoviev

Christopher Ecclecleston: .. Rhykov / Rykov / Ryhkov

Robert Carlysle: .. Kautsky (the one German socialist of the group..)..

and the two "fictional" historical personages..

Ewan MacGregor: .. Sonia Alexander aka.. Society Lex-2

and

Kate Moss: .. Pamela Isley / Poison ivy...

.. these historical personages are mentioned in E. H. Carr's... book, "The interregnum".. the second volume of his three-volume work on "The Russian Revolution..".. and Kautsky is mentioned at length in V. I. Lenin's book of essays, "Against Revisionism"...