Donner was a cast member of Klaw & Erlanger's revival of Humpty Dumpty when it was staged at the New York Theatre in March 1906.
Despite being near universally despised by most in the industry for their ruthless tactics, Klaw and Erlanger produced dozens of Broadway plays and financed many others including the early editions of the Ziegfeld Follies.
Alongside Klaw, Living Laser, and Venom during the Acts of Vengeance, he attempted to steal alien technology from the Watcher's home on the moon.