Former Child Star in Aisle Seven

10/6/2008 4:58 PM PDT BY TMZ STAFF
The 29-year-old resurfaced in the toilet paper aisle at a supermarket in L.A. on Sunday, looking confused.

Patrick helped open the Church of Scientology's Los Feliz Mission, which allegedly counsels young adults.

In 2007, Renna played "Security Guard" in an episode of "CSI."