Monty Woolley

Edgar Montilion "Monty" Woolley (August 17, 1888 – May 6, 1963) was an American actor. At the age of 50, he achieved a measure of stardom for his role in the 1939 stage play The Man Who Came to Dinner and its 1942 film adaptation. Description above from the Wikipedia article Monty Woolley, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Cast

The Man Who Came to Dinner
Sheridan Whiteside

Since You Went Away
Colonel William G. Smollett

Night and Day
Monty Woolley

The Girl of the Golden West
Governor

As Young as You Feel
John R. Hodges

The Bishop's Wife
Professor Wutheridge

The Pied Piper
John Sidney Howard

Arsène Lupin Returns
Georges Bouchet

Holy Matrimony
Priam Farll

Live, Love and Learn
Mr. Bawltitude

Irish Eyes Are Smiling
Edgar Brawley

Zaza
Fouget

Artists and Models Abroad
Gantvoort

Man About Town
Henri Dubois

Everybody Sing
John Fleming

Life Begins at Eight-Thirty
Madden Thomas

Midnight
The Judge

Young Dr. Kildare
Dr. Lane-Porteus

Miss Tatlock's Millions
Miles Tatlock

Never Say Die
Dr. Schmidt

Dancing Co-Ed
Professor Lange

Honeymoon in Bali
Parker (uncredited)

Molly and Me
John Graham

Eloise
Himself

Nothing Sacred
Dr. Oswald Vunch (uncredited)

The Forgotten Step
The Art Collector

Three Comrades
Dr. Jaffe

Kismet
Omar

See Your Doctor
Doctor

Lord Jeff
Jeweler

Breakdowns of 1942
Self