- "A tall, thin woman, her beige hair cut off blunt at the jaw line, her eyes misty green under thin winged brows. The rest of the face was sharp---cheekbones, nose, and chin---skin the uniform golden-tan prized in the higher class courtesans."
- She has a temper that is enough to sometimes scare her.
- Rimmer and Dark Trader
- Cantra is an a "aelantaza" (rare and elite scholar-assassins) from Tanjalyre Institute where she was bred and trained.
- Despite gene selection for aelantaza design, Cantra is "a natural human"
- "Aelantaza's" pheromones induce trust and affection in those who are not "aelantaza". Garen called this a gift, a weapon and a boon, but Cantra thinks of it as a curse and a danger to her and those who fell under her sway. That's why she tries to stay to herself and be as cantankerous and off-putting as possible. (Jela is resistant to Cantras pheromones)
- "Aelantaza" are known for subtlety, raised to be dissembler, thieves and when need be murderer and have an extra efficient memory.
- She was rescued by Pilot Garen yos'Phelium Clan Torvin who saved her life and treated Cantra as if she were her daughter. That's obviously also why Cantra uses the name yos'Phelium, Clan Torvin (not a name Jela would have expected to find on an "aelantaza").
- For some number of years Cantra sat co-pilot to Garen.
- Survived a "line edit" with help from Garen and The Uncle  after her line has been found inferior because "Pliny's gona and struck a teacher" 
- Pilot-owner of Spiral Dance which she inherited when Garen died
- Flies solo for five years after Garen died.
- Cantra's priorities are: First her ship, then herself.
- With Jela (posthumously) and Tor An yos'Galan, she is founder of Clan Korval. She served as the clan's First Delm.
- Pilot of Quick Passage on the Great Migration
- Upon reaching a habitable planet in the new universe, she named it Liad 
- The "cantra" is a large unit of money, a coin, with Cantra's face stamped on one side.
- Garen yos'Phelium Clan Torvin - foster mother and pilot-owner of Spiral Dance, the very last of Clan Torvin (and for all Cantra ever found the first too), not entirely sanelost her real daughter and all her family when a world-eater destroyed her home-world some many years before Cantra was born.
- Timoli - "aelantaza" and a full sister even if they were some 30 years apart, died in the line edit.
- Pliny - "aelantaza" from the same line as Cantra. Slapped and later killed her Instructor Malis which was why the Directors of Tanjalyre Institute found this line to be inferior and edited it from the "aelantaza" breeding tables. (thereby killing all of the line except Cantra).
- M. Jela Granthor's Guard - partner and co-pilot. and the father of their son Val Con.
- Val Con (not the Val Con of Scout's Progress) - son of Jela and Cantra. The first to bear this name and later the 2nd Delm of Korval).
- Tor An yos'Galan, her co-pilot on Quick Passage. They founded Clan Korval together, with Line yos'Phelium the primary clan and Line yos'Galan secondary.
"yos" was the Inworlds prefix denoting a courier or delivery person, and "Phelium" bore an interesting likeness to the Rim-cant word for "pilot". Cantra Courier Pilot, Jela thought.
The Uncle once mused "The Directors of the Tanjalyre Institute had perhaps been correct in breaking the mold from which Cantra yos’Phelium had been cast. A pity they had waited until she was free of their influence before doing so.">
- ↑ Crystal Soldier, ch 13
- ↑ Crystal Soldier, ch 11
- ↑ 3.0 3.1 Crystal Soldier, ch 15
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 Crystal Soldier, ch 16
- ↑ Crystal Soldier, ch 15
- ↑ 6.0 6.1 6.2 Crystal Soldier, ch 29
- ↑ 7.0 7.1 7.2 7.3 7.4 7.5 7.6 7.7 Crystal Soldier, ch 19
- ↑ Crystal Soldier, ch25
- ↑ 9.0 9.1 Crystal Soldier, ch 28
- ↑ Crystal Soldier, ch 17
- ↑ Crystal Soldier, ch 8
- ↑ Crystal Dragon, ch 37
- ↑ Crystal Soldier, ch 30
- ↑ Scout's Progress, ch 5
- ↑ Dragon Ship, ch 11