
Max Terhune (12 February 1891 Franklin, Indiana, – 5 June 1973 Cottonwood, Arizona), was an American film actor. He appeared in nearly 70 films, mostly B-westerns, between 1936 and 1956.
Terhune performed in 21 episodes of The Three Mesquiteers (co-starring with Robert Livingston and Ray "Crash" Corrigan in the Republic series); The Range Busters (24 entries with Ray Corrigan and John King at Monogram Pictures); several supporting roles with Gene Autry (at Republic), and the Johnny Mack Brown westerns at Monogram. Terhune played the comic sidekick (usually named either Lullaby Joslin or just Alibi)--with a major distinction. He always traveled the range with his dummy Elmer sharing his saddle.
Terhune was not only a splendid ventriloquist, but a fine magician. Card tricks were his forte, and he often performed such in his movies. His former vaudeville act included juggling and doing impressions, talents also incorporated into his sidekick roles.
He joined the National Barn Dance radio program, along with Gene Autry, in 1933. It was Autry who introduced him to Republic Pictures. His last film role was in the major Hollywood film Giant, in which he played the dramatic role of the physician Dr. Walker.
Description above from the Wikipedia article Max Terhune, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Rawhide
1951 · as Miner (uncredited)

Roarin' Lead
1936 · as Lullaby Joslin

The Night Riders
1939 · as Lullaby Joslin

West of Pinto Basin
1940 · as Alibi

Ladies in Distress
1938 · as Dave Evans

Red River Range
1938 · as Lullaby Joslin

Hidden Danger
1948 · as Alibi

Heroes of the Hills
1938 · as Lullaby Joslin

Boots and Saddles
1937 · as Wedding Guest (uncredited)

Man of Conquest
1939 · as Deaf Smith

Harmony Trail
1944 · as Marshal Max

The Riders of the Whistling Skull
1937 · as Lullaby Joslin

Santa Fe Stampede
1938 · as Lullaby Joslin

Cowboy Canteen
1944 · as Professor Merlin

Bullets and Saddles
1943 · as Alibi Terhune

Tumbledown Ranch In Arizona
1941 · as 'Alibi' Terhune (as Max 'Alibi' Terhune)

Ghost Town Gold
1936 · as Lullaby Joslin

Thunder River Feud
1942 · as Alibi Terhune