According to Wikipedia "In post-2010 editions of the novels, Wolf is retconned to be the same character as Ben Daniels, who in earlier editions is the identity of "Fox"."

Russian Roulette (Alex Rider) - Weebly Russian Roulette (Alex Rider) - Weebly

Regarding the eighth book, Horowitz stated in 2008: " I've had second thoughts about telling Yassen’s story, which was going to be the subject of this book. I’m thinking of leaving that to number nine. Instead, I’ve got the beginnings of an idea set partly in the UK and partly in Africa."The tenth book in the series, Russian Roulette, focuses on Gregorovich's early life and how he became an assassin.

Russian Roulette Quotes by Anthony Horowitz - Goodreads Russian Roulette Quotes by Anthony Horowitz - Goodreads

Yassen Gregorovitch was extremely resourceful, highly intelligent, exceedingly cunning and an enigmatic combatant when it came to logical battles. His sly and idealistic role as a stereotypical assassin in the Alex Rider series considers him a powerful individual in his right. He was extraordinarily stubborn, shown when he frequently refuses to kill children, this leading to his death. Yassen obtained something of a pitiless streak during his life as an assassin, and Ash comments that he had never seen anyone so calm during an act of murder. Ian Rider is played by Ewan McGregor in the film adaptation of Stormbreaker and Andrew Buchan in the Alex Rider TV series. Despite the crew's best intentions, Alex uses one of his exploding Baht coins to damage the Liberian Star's cargo refrigeration unit, and escape. It is later revealed, when Alex is captured and forced to attend dinner with Major Yu, that Yu himself killed de Wynter, though it is never revealed how. Smithers was portrayed by Stephen Fry in the film Stormbreaker, and Nyasha Hatendi in the Alex Rider TV series. It is possible that The Gentleman has either heard of or encountered or used to be 'The Priest', a contract killer MI6 has encountered in the past.

Yassen spends the next four months at Scorpia's training facility on the island of Malagosto before being given his first contract. When the time comes, Yassen is unable to take the target's life, and she is subsequently killed by another Scorpia agent. Though disappointed with him, Scorpia decide to give Yassen a second chance, and pair him up with John Rider, Alex Rider's father. Slavko Novak is stated as being unhappily married, with four children (all of whose names begin with the letter 'M') who disrespect him. I’ve finally started work on the eighth novel although I don’t think it’ll be out for quite a while. After much thought, I’ve decided to leave YASSEN (the book I was planning) to the very end of the series. This follows a whole series of school visits where people have been a bit half-hearted about the idea…and I do try to listen to what my readers say! So instead, I’m going to write a full-blooded Alex adventure which begins straight after SNAKEHEAD...-- In a general post

Russian Roulette - Alex Rider Russian Roulette - Alex Rider

In Snakehead, it is revealed from his accent that he comes from Liverpool. His codename, depending on whenever the different editions of the books were published, is either "Fox" or "Wolf": in post-2010 editions of the novels, he is "Wolf", while in pre-2010 editions he is "Fox". Alex Underground - published 8 August 2008 in the News of the World Summer Reading Special (post- Ark Angel) Kaspar is the second major antagonist to still be alive after the main antagonist of the story (Nikolei Drevin) is killed. The first was Yassen Gregorovitch, who first killed Herod Sayle himself in Stormbreaker, and later died in Eagle Strike shortly after the main antagonist, Damian Cray, was killed. http://anthonyhorowitz.com/newscentre/alexrider/necropolis-new-york-and-a-question-should-i-sue-darren-shan/73/Max Grendel is a minor antagonist in the novel SCORPIA. He was an executive board member of SCORPIA who previously served as head chairman, having been a commander in the German secret police. He had an eye problem which causes his eyes to be permanently teary. He was the oldest member of the board at seventy-three. He also has two grandchildren named Hans and Rudi who were about the age of Alex Rider, and in his old age, it is said that he has grown sentimental. Not desiring that SCORPIA kill children the same ages as his grandchildren, he quits the organisation and Julia Rothman presents him with an executive briefcase as a retirement gift. However, once Grendel opens it, dozens of sand coloured scorpions ( Parabuthus species) are released. His heart gave up before the neurotoxins killed him. Fans of the Alex Rider series are eager for the arrival of this book, Yassen Gregorovich becoming and remaining one of the most popular characters in the series since his first appearance in Stormbreaker. In his youth, Yassen was enthusiastic, brave, sly, selfless and naive. He was ferociously loyal to John Rider and became something of a partner to him. He was very inquisitive in his young ages and was infrequently asking advice from his mentor and role model, John Rider. He was also selfless and retained a high degree of intelligence and deduction skills. Yassen is very idealistic about his later work as an assassin. He displays reluctance to be a killer, but in the end, he is left with no choice.

Russian Roulette - Alex Rider

Before Yassen was born, his father invented a deadlier version of anthrax which was highly contagious - the perfect biological weapon for military use, and which was capable of eliminating enemy troops and even entire villages and cities within days. Because of his unwillingness to utilize the properties of the virus for military use, he and his wife were exiled to the remote village of Estrov and forced to create transferable quantities of the virus for the Russian military; under the facade of producing pesticide for farmers.Yassen, to keep his conditions intact and to assist him in his upcoming missions, individually practices marksmanship, works out in the gym or goes for a run. He does this at night and only sleeps for at most four hours. He also practices various languages. Additionally, he is shown to have mastered various skills and talents such as expertise of martial arts, aviation (Helicopters, he received his license 5 years before the Sormbreaker accident), vehicular warfare, meditation, combat with various weapons and stealth. Derek Vosper is a minor antagonist in Never Say Die. He is the husband of Jane Vosper, and works as the curator of the Ashmolean Museum in Oxfordshire. McCain mentions later on in the novel that he had killed Straik by shoving a poisonous Cone snail from the Poison Dome down his throat, as he did not want to share the money with anyone.