Don't Weaken!

Ford Sterling Professor Yonson - the Dancing Master James Finlayson Lightfingered Luke - Professor Yonson's Assistant Charles Murray Frank Reilly Fanny Kelly Reilly's Wife Harriet Hammond Reilly's Daughter Joseph Belmont Reilly's Daughter's Beau Billy Armstrong The Pianist (uncredited) Lige Conley Reilly's Poker Pal (uncredited)