Aylesworth, who most recently played a 1970s Dharma Initiative member on Lost's time-tipping fifth season, joins a guest cast that includes Campbell Scott, Martin Short, Lily Tomlin and Keith Carradine. No details on her role have been released.
Aylesworth's casting was first reported by EW's Michael Ausiello.
Production is under way on Damages' third season, which is set for a January 2010 debut.
What do you hope to see from Aylesworth's character?