Peter Guillam was created in 1961.
Producers wanted Michael Jayston to play Peter Guillam as he did in Tinker Tailor Soldier Spy, but he was already committed to something else when filming began- so Michael Byrne was cast instead.
Correct. I believe that Jayston had a stage committment that he could not, or would not, break.
Peter Peter Pumpkin Eater was created in 1825.
God created St. Peter.
Peter Duck was created in 1932.
Peter Camenzind was created in 1904.
Peter Grimes was created in 1945.
Peter Pomegranate was created in 1510.
Educating Peter was created in 1992.
Peter Lattimer was created in 2009.
Peter-Service was created in 1992.
Peter Venkman was created in 1984.