<Li> Brendan Penny as Kevin O'Brien, older son of Mick and Megan . Initially a medic in the U.S. Army, he explores other career opportunities in season two . </Li> <Li> Andrew Francis as Connor O'Brien, younger son of Mick and Megan who is initially a law student, and later an aspiring attorney . </Li> <Ul> <Li> Abbie Magnuson as Caitlyn Winters, daughter of Abby and Wes </Li> <Li> Kayden Magnuson as Carrie Winters, daughter of Abby and Wes </Li> <Li> Michael Karl Richards as Wes Winters, Abby's ex-husband </Li> <Li> Brittany Willacy as Leigh Corley, Trace's bandmate and songwriting partner </Li> <Li> Serge Houde as Del Granger, Abby's new boss in Baltimore </Li> <Li> Britt Irvin as Danielle Clayman, Connor's law school classmate who becomes his love interest </Li> <Li> Ali Liebert as Georgia Eyles, Kevin's ex-fiancée (season 1) </Li> <Li> Karen Kruper as Dee Riley, Trace's mother </Li> <Li> Tom Butler as Lawrence Riley, Trace's father </Li> <Li> Carlo Marks as David Peck, Jess's boyfriend who seems to have more in common with Bree </Li> <Li> Kyle Cassie as Martin Demming, Bree's former longtime boyfriend </Li> <Li> Bradley Stryker as John Rawl, bassist for Trace's former band who later joins the Trace Riley Band (seasons 2--3) </Li> <Li> Jessica Sipos as Sarah Mercer, a local firefighter and Kevin's love interest (seasons 2--3) </Li> <Li> Gregory Harrison as Thomas O'Brien, Mick's brother who is an environmental attorney (seasons 2--3) </Li> <Li> Victor Webster as Douglas Peterson, a widower that Abby meets who later partners with Mick in a land development deal (seasons 2--3) </Li> <Li> Jerry Trimble as Mark Hall, a Nashville music executive who takes an interest in the Trace Riley Band (seasons 2--3) </Li> <Li> Oliver Rice as Simon Atwater, a novelist and Bree's love interest (seasons 2--3) </Li> <Li> Kent Sheridan as Donovan Wylie, an established country music star with whom the Trace Riley Band is touring as an opening act (season 3) </Li> <Li> Teryl Rothery as Robin O'Brien, Thomas' wife (season 3) </Li> <Li> Malcolm Stewart as Dennis Peck, David's father (season 3) </Li> <Li> Gillian Barber as Deidra Peck, David's mother (season 3) </Li> <Li> Jordana Largy as Alexandra Peck, David's sister (season 3) </Li> </Ul> <Li> Abbie Magnuson as Caitlyn Winters, daughter of Abby and Wes </Li>

Who plays david's sister on chesapeake shores