Stage acting debut at Montreal Repertory Theatre (while at McGill)

Immigrated to USA

Professional stage debut, "Up Pops the Devil" with Cochran's Stock Company at the National Theatre, Washington, DC

Broadway acting debut in "Hipper's Holiday"

Breakthrough stage role as the the lead in the road company of George Abbott's Broadway success, "Three Men on a Horse"

TV debut as Ned Farrar on "Her Master's Voice" (NBC)

Screen acting debut in "Shadow of a Doubt", first of four feature collaborations with director Alfred Hitchcock (two acting, two writing)

Earned Oscar nomination as Best Supporting Actor for his turn in "The Seventh Cross"; wife Jessica Tandy's first appearance in an American film

Stage directing debut, "Portrait of a Madonna" in Los Angeles, starring Tandy; this one-act play by Tennessee Williams led directly to her playing Blanche Du Bois in Williams' "A Streetcar Named Desire" on Broadway

Wrote first screen adaptation, "Rope" (from Patrick Hamilton's play), directed by Hitchcock

Debut as TV series producer (with Donald Davis) and director (with Fred Carr and Ralph Warren), "Actors Studio" (initially aired on ABC, later on CBS)

Adapted "Under Capricorn" (from Helen Simpson's novel), directed by Hitchcock

Broadway directing debut, "Now I Lay Me Down to Sleep"

First time acting on stage opposite Tandy in Broadway production of "The Fourposter", a play they would end up doing more than 600 times over the years

First of three films directed by Joseph L Mankiewicz, "People Will Talk"

Regular actor on radio series, "The Marriage"

TV series debut as actor (with Tandy), "The Marriage" (NBC); also produced

Portrayed Louis Howe in "Sunrise at Campobello"

First time playing his favorite role (Harpagon) in Moliere's "The Miser" at Tyrone Guthrie Theatre, Minneapolis, MN

Played Polonius in "Hamlet" (on stage and film), directed by John Gielgud and starring Richard Burton in the title role; won Tony Award as Featured Actor in a Play

Starred opposite Tandy in Edward Albee's "A Delicate Balance" on Broadway

Lost an eye to cancer (date approximate)

Last film with Mankiewicz, "There Was a Crooked Man"

Starred opposite Tandy on Broadway in "Noel Coward in Two Keys"

Acted in first of three movies directed by Alan J Pakula, "The Parallax View"

Co-produced (with Mike Nichols) and starred in "The Gin Game" opposite Tandy on Broadway and on tour

With Susan Cooper, co-wrote play, "Foxfire"; co-starred with Tandy on Broadway

First feature film with Tandy in 35 years, "Honky Tonk Freeway"

Appeared opposite Tandy in PBS presentation of "The Gin Game"

Co-wrote (with Cooper) award-winning teleplay, "The Dollmaker" (ABC), Jane Fonda's TV-movie debut; adapted from Harriette Arnow's novel

Scored big success in Ron Howard's "Cocoon", featuring an all-star cast of oldsters including Don Ameche (who won a Supporting Actor Oscar), Maureen Stapleton and Tandy

Last Broadway show to date, "The Petition", co-starring Tandy

With Tandy, reprised stage roles for a CBS "Hallmark Hall of Fame" presentation of "Foxfire"

Starred opposite Tandy in "*batteries not included"

Appeared in sequel (with Tandy), "Cocoon: The Return"

Teamed with Vincent Gardenia for the HBO movie "Age-Old Friends"; received first Emmy Award; daughter Tandy Cronyn co-starred

Earned second Emmy as the grandfather in "Neil Simon's Broadway Bound" (ABC)

Last film with Pakula, "The Pelican Brief"

Acted opposite Tandy in the "Hallmark Hall of Fame" CBS TV-movie "To Dance With the White Dog"; earned an Emmy for his performance

Last screen appearance with Tandy, playing her former lover, in "Camilla"; released after her death

Had featured role in "Marvin's Room"

Home movies shot by Cronyn and Tandy on their journey to East Africa in 1966, augmented by footage from his return there in 1995, became "An African Love Story" (Disney Channel)

Acted in Showtime movies "12 Angry Men" and "Horton Foote's Alone"

Appeared in the CBS minseries, "Seasons of Love"