"Villem Craven: I ask him, "Vladimir, who knows I do this for you?" "Only Mikhel, a very little," he said. "Mikhel is my friend. But even to friends, we cannot trust." "Enemies I do not fear," he said, "but friends, I fear greatly.""

"Ian Bannen - Jim Prideaux"

"Michael Jayston - Peter Guillam"

"Alec Guiness - George Smiley"

"Hywel Bennett - Ricki Tarr"

"As a good socialist, I'm going where the money is, and as a good capitalist, I'm sticking with the revolution, because if you can't beat it spy on it."

"Michael Aldridge - Percy Alleline"

"Don't look like that, George; it's the name of the game these days—you scratch my conscience, I'll drive your Jag."

"Roy Bland is not "red brick." He was at St Antony's College, Oxford."

"[responding to a rumor about the Circus's deceased chief] Control died of a heart attack, after a long illness, throughout most of which he continued to work. Besides he hated South Africa. He hated everywhere except Surrey, the Circus, and Lord's Cricket Ground."

"Alec Guinness - George Smiley"

"Ian Richardson - Bill Haydon"

"[on his enforced retirement from the Secret Service] Reason as motive, or reason as logic, or reason as a way of life? They don't have to give me reasons—I can write my own damn reasons, and that is not the same as the half-baked tolerance that comes from no longer caring!"

"[to Peter Guillam] I'm surprised they didn't throw you out with the rest of us. You had all the qualifications for losing your job: good at your work, loyal, discreet..."

"You featherhead, Martindale! You pompous, bogus, gossiping old featherhead!"

"Blake Anderson - Blake Henderson"

"Adam DeVine - Adam DeMamp"

"Anders Holm - Anders "Ders" Holmvik"

"Jillian Bell - Jillian Belk"

"Maribeth Monroe - Alice Murphy"

"Erik Griffin - Montez Walker"

"Kyle Newacheck - Karl Hevacheck"

"Alfre Woodard - Doris Robson"

"Dennis Franz - Lt. Norman Buntz (1985–87)"

"Robert Clohessy - Officer Patrick Flaherty (1986–87)"

"Megan Gallagher - Officer Tina Russo (1986–87)"

"Robert Hirschfeld - Officer Leo Schnitz (1981-1985)"

"Robert Prosky - Sgt. Stan Jablonski (1984–87)"

"Barbara Bosson - Fay Furillo (1981–86)"

"Ken Olin - Detective Harry Garibaldi (1984–85)"

"Rene Enriquez - Lt. Ray Calletano (1981–86)"

"Mimi Kuzyk - Detective Patricia "Patsy" Mayo (1984–85)"

"Ed Marinaro - Officer Joe Coffey (1981–86)"

"Michael Warren - Officer Bobby Hill"

"James B. Sikking - Lt. Howard Hunter"

"Betty Thomas - Sgt. Lucille Bates"

"Charles Haid - Officer Andy Renko"

"Michael Conrad - Sgt. Phil Esterhaus (1981–84)"

"Bruce Weitz - Detective Mick Belker"

"Joe Spano - Sgt. Henry Goldblume"

"Kiel Martin - Detective J.D. LaRue"

"Daniel J. Travanti - Captain Frank Furillo"

"Taurean Blacque - Detective Neal Washington"

"Veronica Hamel - Joyce Davenport"

"France Nguyen - Dr. Paulette Kiem"

"Cindy Pickett - Dr. Carol Novino"

"Jamie Rose - Dr. Susan Birch"

"Bruce Greenwood - Dr. Seth Griffin"