There were 24 suspects. The first suspect was Montague John Druitt.
Like many other Ripper suspects, Thompson was associated with Jack The Ripper only by the flimiest of circumstances. Thompson had trained as a medical doctor and he lived just south of Whitechapel. Other than that I could find no other reason for him to be a suspect.
If you mean suspect names, then the answer is yes, hundreds of them in fact. There has never been a shortage of suspects.
Prince Albert Victor!
2 were doctors
No. Kasminsky was not the Ripper, in fact he was never even a serious suspect.
Jack The Ripper was never caught and although there is never a shortage of suspects it will most likely take DNA evidence to finally close the books on this killer.
Everybody seems to have their own favorite suspect as Jack the Ripper. There has never been a shortage of suspects or opinions on the identity of this notorious killer. I have studied the crimes of the Ripper and read many books on this subject including modern investigations using 21st century investigative tools and my opinion is that Walter Sickert was the Ripper. There is DNA evidence that links letters of Sickert's to some of the Ripper letters. This is but one example of the many "coincidences" that ties Sickert to the Ripper crimes.
Scotland Yard detectives. It was easy once they received several letters signed Jack The Ripper. That made him the number one suspect.
James Kelly has recently surfaced as a Ripper suspect. Unfortuneatly, when suspects are investigated for these crimes the person investigating relies on previous inaccuracies which in turn makes for faulty conclusions. James Kelly is one such suspect. Jack The Ripper's crimes did not stop after the murder of Mary Kelly in November 1888, and in all likelyhood Mary Ann Nichols was not the first victim. The detectives that worked the case were well aware of these facts. As time goes on many of these inaccuracies are taken as fact making the truth that much harder to discern.
Dr. Thomas Neill Cream didn't suspect anyone as Jack the Ripper, he was too busy killing people himself. Whereas the Ripper used a knife, Dr. Cream used poison, one of the most cowardly ways to commit murder.
Thomas Cutbush was named as the Ripper by the Sun newspaper on the 13th February 1894. The possibility of Thomas Cutbush being Jack the Ripper was thoroughly investigated by the police at the time, and shown to be without foundation.
In 1894, Sir Melville Macnaghten, then Chief Constable, wrote a confidential report in which he names the three top suspects.