My go to for celebrities, https://www.deadoraliveinfo.com/ apparently has bit the dust.
My other source https://www.ihopeidiebeforeigetold.com/ shows Bill Pitman at 100 years old.
Wiki has a list of centarian celebrities dead and alive. https://en.m.wikipedia.org/wiki/List_of_centenarians_(actors,_filmmakers_and_entertainers)
Most of the names on the list are foreign actors or unknowns. 22 on the list are alive with the oldest Renee Simonot (Catherine Deneuve’s mother) at 108. Norman Lloyd at 105 is the oldest American actor.
They list as a celebrity, Ruthie Thompson, a Disney animator who just celebrated her 110th birthday.
We may have to wait for Betty White to turn 100.