Actor Patrick Dempsey and the three professional cyclists riding with him in the Dempsey Challenge will make one of many public appearances at L.L. Bean from 2:30 to 3:30 p.m. Saturday, event manager Wendy Tardif said.

Pro riders and Tour de France veterans Levi Leipheimer, Chris Horner, and former pro rider Kevin Livingston also will ride with Dempsey Sunday in his annual charity that raises funds for the Patrick Dempsey Center for Cancer Hope and Healing in Lewiston.

The Dempsey Challenge is a two-day health and wellness fundraiser and festival that involves a walk and run on Saturday and four different bike rides on Sunday. Dempsey and the pro riders are expected to circle the 50-mile course that winds around Lewiston.

For more information, go to www.dempseychallenge.org.