The 50s stage legend who later played the gruff, but lovable character known as "Kolchak, the Night Stalker".  He was also the husband of the late veteran stage and TV actress Kathie Browne.

He also played the title role in the earlier "Mike Hammer" in the early 60's.

Darren had the privilege of working on stage with many of the stars who later emerged on television during the 1960's and 1970's, such as Pernell Roberts, Hurd Hatfield, Robert Lansing and Joanne Woodward.

Darren also worked with Don Knotts the forgotten Disney gem "No Deposit, No Return" in the 1970's

Darren  worked at the Blackfriars Theatre in New York. The Blackfriars Theatre closed in 1972.  The company has since been revived by Fr. John Peter Cameron, O.P. as the Blackfriars Repertory Theatre.

Dennis was best known as "McCloud" a New Mexico lawman working in the Big Apple, and as the limp-legged deputy "Chester" in the early years of  "Gunsmoke".  He was an environmentalist as well. 

One of his best roles was the intended victim of a truck driver in Steven Spielberg's classic "Duel." and had a role in the Korean War classic "The Bridges at Toko-Ri"

He also served as president of the Screen Actors' Guild.

The lanky, saucer-eyed comic actor who was best known as apartment manager Ralph Furley in "Three's Company" and had earned several Emmy awards as the inept, yet lovable deputy, Barney Fife in "The Andy Griffith Show/Mayberry R.F.D"
Other notable performances:

Don also worked with Darren McGavin in the forgotten Disney gem "No Deposit, No Return" in the 1970's

His most recent role was in Disney's "Chicken Little"