Phil Ondich is an American musician from near Mansfield Ohio.
In 1997, drummer Phil Ondich (A.K.A. Philth) was playing in American hard rock band Raging Slab. Having met Zakk Wylde several times while he was touring for his 1996 solo record Book Of Shadows, the two agreed to work together on a project Wylde had been planning. Ondich became a founding member of Wylde's Black Label Society in 1998 and played on their first two albums before exiting the band in July 2000.
In 2001, Ondich was featured on Raging Slab's album "The Dealer," although his drum tracks were recorded before he left the band in 1998. When Slab frontman Greg Strzempka was asked about this in his Metal Sludge 20 Questions interview, he responded with "...as far as the tracks on the new record- Phil is an EXCELLENT drummer...and the songs he recorded with us were really good -and when you've NAILED it- why do it again?" 
Much of the artwork that BLS still uses today was created by Ondich when he was with the band. Ondich is currently doing studio session work and recording original material.