Moloney missed last round with a groin injury and Martin was a late withdrawal against West Coast Eagles due to a hip complaint.
Other key Dees, Colin Sylvia (back) and Liam Jurrah (wrist) are still three games away from resuming.
Ball-winner Jordan Gysberts (ankle) will miss another three to five weeks and defender James Strauss (leg) is out for two more matches.
Emerging tall Lucas Cook remains sidelined for two more games and Rory Taggert (back) will miss another three weeks.
Utility Neville Jetta (ankle) and rookie Michael Evans (back) are out indefinitely and ruckman Max Gawn will miss the rest of the season with a knee injury.
But big man Jake Spencer, who has been sidelined with a knee injury since round eight last year, will return this weekend for Casey.
Spencer started the year on the long-term injury list.
Round three injury list
Lucas Cook (groin) - 2 weeks
Michael Evans (back) - indefinite
Max Gawn (knee) - season
Jordan Gysberts (ankle) - 3-5 weeks
Neville Jetta (ankle) - indefinite
Liam Jurrah (wrist) - 3 weeks
Stef Martin (hip) - test
Brent Moloney (groin) - test
James Strauss (leg) - 2 weeks
Col Sylvia (back) - 3 weeks
Rory Taggert (back) - 3 weeks
