Vandamm Studio, photographer (alternate photo here) · Public domain

An American actor who trained in Orson Welles's original Mercury Theatre company before becoming a fixture of Broadway, winning the 1961 Tony Award for Best Featured Actor for Big Fish, Little Fish and earning acclaim as Professor Moriarty in Baker Street. He directed one feature film, The Lost Moment, and appeared in supporting film roles including Marnie, but was best known to television audiences for decades as a witty panelist on What's My Line?, alongside his wife, actress Arlene Francis.