An Unseen Enemy

Lillian Gish

Eldest Sister

Dorothy Gish

Youngest Sister

Robert Harron

The Boyfriend

Elmer Booth

The Brother

Grace Henderson

The Maid

Harry Carey

The Safecracker

Adolph Lestina

In Boardinghouse (uncredited)

Walter Miller

The Brother's Friend (uncredited)

Antonio Moreno

On Bridge (uncredited)