The drama, which is set in the fashion world, is being executive produced by Grey's Anatomy's Mark Gordon.
LaPaglia has now landed the part of fashion designer Robert Soulter, Deadline reports.
When a young designer joins Robert's family, it causes consequences for the clan and his fashion label.
LaPaglia has previously appeared in shows such as Murder One and Frasier, though he is best known on television for his role as Jack Malone in Without A Trace.
Other pilots in the works at ABC include a comedy starring Mary McCormack, submarine drama Last Resort from The Shield creator Shawn Ryan, and supernatural show 666 Park Avenue, which stars Lost's Terry O'Quinn.