In Benkel v East-West German Real Estate Holding & Anor  EWHC 188 (Ch), Morgan J was asked to join a party on the basis of Article 8(1) Brussels Ia’s anchor defendant mechanism, and obliged. Mr Dikautschitsch (domiciled in either Spain or Germany) is to be one of a number of defendants. One of the existing defendants, East-West UK, is domiciled in England and Wales.
Casio Computer Co Ltd v Sayo & Ors  EWCA Civ 661 was the authority mostly relied on, as was, via the link with Article 30, Sarrio SA v Kuwait Investment Authority. Expediency to add the second defendant to the proceedings was found to be present given the possibility of conflicting findings of fact . Morgan J rejected  a rather novel argument that given the possibility of the E&W courts’ findings of fact clashing with potential future proceedings elsewhere, he should refrain from exercising his discretion to consolidate.
European Private International Law, 3rd ed. 2021, Heading 188.8.131.52.