The New Avengers, Series 1 — Episode 8The Tale of the Big Why by Brian ClemensDirected by Robert Fuest The Cast click a name to see the face John Steed Patrick Macnee regular007 Mike Gambit Gareth Hunt regularDoctor WhoSpace 1999 Purdey Joanna Lumley regular007Doctor WhoPink Panther George Harmer Derek Waring CallanThe ProfessionalsDoctor Who Irene Brandon Jenny Runacre The Sweeney Bert Brandon George A. Cooper regularDoctor WhoDanger ManThe Saint (billed as George Cooper) Frank Turner Roy Marsden Space 1999Danger Man Roach Gary Waldhorne Space 1999The ProfessionalsThe Sweeney Poole Rowland Davis The Professionals Minister Geoffrey Toone Doctor WhoThe Saint Mrs. Turner Maeve Alexander (billed as Maev Alexander) Truck driver unknown Food vendor Tommy Little The SweeneyCallan Truck driver unknown Kommissar Verslashky Willy Bowman Doctor Who007Adam AdamantCallan