Which one is a character from 'Arms and the Man'?

Arms and the Man, romantic comedy in three acts by George Bernard Shaw, produced in 1894 and published in 1898. The play is set in the Petkoff household in Bulgaria and satirizes romantic ideas concerning war and heroism.
Some important characters of this play are- Captain Bluntschli, Raina petkoff, Catherine petkoff, Louka, Nicola.
Source: britannica and SparksNotes