Mr. Sands is an extraterrestrial entity with the goal of freeing Garnok from his prison under the sea. He is one of Garnok's generals and seems to be several hundred years old.
Mr. Sands is cruel, power hungry, secretive, loyal to cause in releasing Garnok. However, he does have a bit of a caring side, after Justin was no longer useful to Dark Core and about to be thrown overboard. Mr. Sands enlisted the Soul Riders help in saving him.
Sanghorda is, according to Starshine Legacy: The Riddle of Dark Core, Mr. Sands true name.
Owen D. Sands
It was under the name Owen D. Sands that Mr. Sands started the company Deep Core, nowadays known as Dark Core.
Mr. Sandy was Mr. Sands alias during his time as a captain on a fishing boat during the 1870's.
John Sandman was Mr. Sands alias when he married the Baroness of Silverglade in 1964. Together they had a son, Thomas Moorland. Under this identity, he claimed to come from Firgrove, where he sat in the council. It is unknown for how long he was a part of the council, but he is in a photo of the council that was taken in 1959.
Mississippi Jones knew Mr. Sands through this name, as was documented in his last diary.
Soul Riders book series
Soul Riders: Jorvik Calling
Mr. Sands first shows up when he drives to the school where the Riders of Souls study and talks to Sabine. He later calls her and Jessica to a meeting at the Cape Point oil rig to inform them that the Third General will be arriving in Jorvik soon. At the end of the book, the man orders his staff to imprison Lisa's father, who unfortunately was passing through the helipad and overheard the conversation between Mr. Sands and Katja.
Soul Riders: Legend Awakens
Mr. Sands has the Generals track the Soul Riders and listens to their progress reports. Its purpose is to sacrifice Starshine, Tin-Can, Concorde, and Meteor to use their magical energy to release Garnok.
With Katja's help, he locks Lisa in a cage, which he makes fun of and taunts at.
While in the library at the Pine Hill Mansion, Linda discovers that Mr. Sands began to hear a voice after the death of his beloved Rosalinda, who was presumed a witch. That voice turned out to be Garnok, with whom the man made some kind of contract in exchange for immortality.