|Rank|| Bosun's Mate|
|Seen|| Into the Storm|
Iron Gray Sea
Straits of Hell
Blood in the Water
|Relationships|| Risa-Sab-At, sister|
Selass-Fris-Ar, romantic interest
Dennis Silva friend.
|Job|| Wing Runner|
Chack-Sab-At was a wing runner on Salissa.
Chack was the first to warn of the attack by six Grik ships. During the battle he fought bravely.
One of the original Lemurians to enter service with Walker, he very quickly gained the loyalty and trust of his shipmates. Chack considers Walker to be his home, whilst on detachment he is a Marine with a formidable reputation, on Walker he happily reverts to his 'permanent' rank of Bosun's Mate
Chack is a brindle-furred 'cat on USS Walker. He has green eyes, and is described as being very strong for a Lemurian. He used to wear a traditional Lemurian red kilt when he was a wing runner on Salissa Home. When the Americans first came into the world, he was one of the first to befriend them, and often takes the position of lookout, or captain of Walker's marine contingent.