Both William T. Deutschendorf and Henry J. Deutschendorf II (Also know as Will and Hank Deutschendorf) are the baby actors that together played Oscar in Ghostbusters II. That however is the only acting role the Deutshendorfs were in.
After a long battle with schizoaffective disorder, Hank Deutschendorf committed suicide by hanging in a closet of an apartment he shared with his twin brother in Escondido. He was discovered the evening of June 14, 2017 by William. William started a drive for "Hank's Hope for a Cure" with the Brain & Behavior Research Foundation for those who wish to offer their condolences.