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Acting
January 13, 1919
May 14, 2003
Los Angeles, California, USA
Robert Langford Modini Stack (January 13, 1919 – May 14, 2003) was a multilingual American actor and television host. In addition to acting in more than 40 films, he also appeared on the television series The Untouchables and later served as the host of Unsolved Mysteries. Born in Los Angeles, California, Stack spent his early childhood growing up in Europe. Becoming fluent in French and Italian at an early age, and he did not learn English until returning to Los Angeles. Stack achieved minor fame in sporting, winning multiple championships including setting two world records and winning multiple honors in skeet shooting Stack studied drama at Bridgewater State College, earning his first Hollywood role at the age of 20 and continuing to star in numerous roles throughout the early 1940s. After serving in the military, Stack returned to Hollywood to star in numerous films including stand out roles in The High and the Mighty (opposite John Wayne) and Written on the Wind (1957), for which he was awarded an Academy Award for Best Supporting Actor. Stack later moved on to televised dramatic series, depicting the crime-fighting Eliot Ness in The Untouchables (1959–1963), which earned him a best actor Emmy Award in 1960. Stack also starred in multiple drama series, before returning to film, this time in comedies to satirize his famed stoic and humorless demeanor. He began hosting Unsolved Mysteries in 1987, and served as the show's host throughout it's entire original run from 1987 to 2002.

Self (archive footage)
2023

(archive footage)
2019

(archive footage)
2018
Self (archive footage)
2008

Host
2004

Stoat Muldoon (voice)
2002

Self
2001

The Gooch
2001

Superintendent (voice)
2001

Himself
1999

as Self (archive footage)

as (archive footage)

as (archive footage)
as Self (archive footage)

as Host

as Stoat Muldoon (voice)

as Self

as The Gooch

as Superintendent (voice)

as Himself

as Sumner Ethridge

as Narrator (voice) (archive sound)

as Host

as Bob (voice)

as Robert Stack

as Self

as Narrator (voice)

as Reynolds Penland (voice) (uncredited)

as Agent Flemming (voice)

as Robert Stack

as Self

as Peter McReynolds
as Self

as Eliot Ness

as Lt. Littleboy (voice)

as Robert Stack (uncredited)
as Kyle Hadley


as Dr. Ellison

as Host

as Louis Faciano

as Chandler Young

as Mr. Gardner

as Jordan White

as Self

as Ultra Magnus (voice)

as Winslow

as Drew Hammond

as George Lancaster

as Chester Harrison


as General Stark

as MacGregor

as Self

as Lewis Blackwood

as Charles Vandoor

as Roland Saunders

as Captain Frank Murphy

as Self

as Captain Rex Kramer
as Self

as Maj. Gen. Joseph W. Stilwell

as Host - Narrator

as Self

as François Davis

as Bret Garrett

as Captain Linc Evers

as Captain Larkin

as Capt. James Morgan

as Self

as Self

as Michael Rhodes

as Self


as Self
as Self (archive footage)

as David Frasier

as Dan Farrell

as Mark McPherson

as Angelo (Businessman)

as Jim Beckley

as Cliff Wilder

as General Sibert
as James Andrew Congers
as Major Morgan
as James Andrew Congers

as Dr. Donovan MacLeod

as Self

as Self

as Agent Briggs

as Self - Co-Host

as Self

as Cliff Henderson

as Eliot Ness

as John Paul Jones

as Eliot Ness

as Eliot Ness

as William 'Bill' Beck

as Roger Shumann

as Kyle Hadley

as Owen Pentecost

as Dr. Tommy Baker

as Mark Macpherson

as Mark MacPherson

as Eddie Kenner

as John Sullivan

as Captain Charles Wogan

as Col. Gil Manton

as Maj. Tom Burke

as Lt. Billings

as Self

as Ralph Saunders

as Ben Barton

as Bob Hayward

as Vic Flint

as Self / Bo Bo McGoon

as Patrick O´Moore

as John Regan

as Jeff Blake
as First Man
as Self - Intermission Guest

as Self - Cameo



as Capt. Stuart L. Hamilton

as Nickey Van Alen

as Stephen Andrews

as Self

as Self

as Self - Presenter

as Himself

as Bob - Factory worker

as Barry Conovan

as Chuck S. Brewer

as Lieut. Stanislav Sobinski

as Jim Holliday

as Self

as Don Webb

as Bob Terry

as Otto Von Rohn

as Ted Drake