<Ul> <Li> Julianna Guill as Becca Riley, Jake's new girlfriend and a successful actress on a CW show </Li> <Li> Patrick Heusinger as Max McCarthy, Abby's brother </Li> <Li> J. August Richards as Ford, husband to Abby's brother </Li> <Li> Warren Christie as Will, Abby's new boyfriend </Li> <Li> Brian Markinson as Albert, Delia's boss and long - time fling . Delia has an affair with him while engaged to Gordon </Li> <Li> Matthew Glave as Gordon Beech, Delia's client with whom she starts an affair </Li> <Li> Brandon Jay McLaren as Marco, Phoebe's love interest </Li> <Li> Aaron Staton as JD, Phoebe's love interest </Li> <Li> Jean Smart as Katherine Miller, Abby's editor </Li> <Li> Mark Valley as Dr. Harris, Abby's love interest </Li> <Li> Maury Sterling as Rob Frumpkis, Jo's ex-husband </Li> <Li> Will Kemp as Scott, the vegan confectioner at Jo's bakery </Li> <Li> Megan Hilty as Charlene, Frumpkis' new girlfriend </Li> <Li> Charles Mesure as Ralf, Phoebe's ex-husband </Li> <Li> James Lesure as Mike Brady, Charlie's baseball coach </Li> <Li> Daisy Betts as Gemma </Li> </Ul> <Li> Julianna Guill as Becca Riley, Jake's new girlfriend and a successful actress on a CW show </Li> <Li> Patrick Heusinger as Max McCarthy, Abby's brother </Li> <Li> J. August Richards as Ford, husband to Abby's brother </Li>

Who plays abby brother on girlfriends guide to divorce