The Microbe
Viola Dana in the film
Directed by	Henry Otto
Written by	June Mathis (Scenario)
Based on	the short story, "The Microbe" by Henry Altimus
Produced by	Maxwell Karger
Starring	Viola Dana Kenneth Harlan Arthur Maude
Cinematography	John Arnold
Production company	Metro Pictures
Release date	July 21, 1919 (1919-07-21) (US)[1]
Running time	5 reels
Country	United States
Language	English

The Microbe is a 1919 American silent comedy-drama film, directed by Henry Otto. It stars Viola Dana, Kenneth Harlan, and Arthur Maude, and was released on July 21, 1919.

Cast list

• Viola Dana as Happy O'Brien, aka "The Microbe"
• Kenneth Harlan as DeWitt Spense
• Arthur Maude as Robert Breton
• Bonnie Hill as Judith Winthrope
• Ned Norworth as Norman Slade
• Lucy Donahue as Mrs. Risden