
Acting
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 mult…

Unsolved Mysteries: Behind the Legacy
as Self (archive footage)

Jacques Tati, tombé de la lune

Yellowface: Asian Whitewashing and Racism in Hollywood
as (archive footage)

These Dead Souls
as (archive footage)
Acting for Douglas Sirk
as Self (archive footage)

Unsolved Mysteries Volume 1: UFOs
as Host

Recess: School's Out
as Superintendent (voice)

Killer Bud
as The Gooch

Lana Turner... a Daughter's Memoir
as Self

Mumford
as Himself

Butt-Ugly Martians
as Stoat Muldoon (voice) · 26 ep.

Lords of the Mafia with Robert Stack
as Self - Narrator · 16 ep.

Hercules
as Bob (voice) · 65 ep.

King of the Hill
as Reynolds Penland (voice) (uncredited) · 1 ep.

The Angry Beavers
as Narrator (voice) · 1 ep.

Suddenly Susan
as Robert Stack · 1 ep.

Diagnosis: Murder
as Peter McReynolds · 1 ep.
Vicki!
as Self · 1 ep.

Unsolved Mysteries: UFOS
26 ep.

Blossom
as Robert Stack · 1 ep.
Hercules
1998