Sam Kieth, the acclaimed comic book creator known for 'The Maxx' and as a co-creator of 'Sandman,' has passed away at the age of 63 on March 15 due to Lewy Body Dementia.

'Phantasm' star Reggie Bannister needs financial help as he battles Lewy Body Dementia and Parkinson's disease ... because he has to move to a full-time care facility -- and it's expensive. Reggie's wife, Gigi, tells TMZ ... his limbs have become…