Lt. Commander Susan Ivonava was born in St. Petersburg Russia. She has strong dislike for the Psi-Corps whose legally mandated drug treatments drove her mother to suicide after it was discover that she was a latent telepath. Her brother was killed in the Earth-Minbari war. She is second in commander under Commander Sinclair. When Captain Sheridan takes over as commander of B5 he promotes her to Commander. She plays a big role in the running of B5 and helping her commanding officers. At the end of the war with Earth she is gravely wounded. Marcus saves her life by using an alien machine but pays with his own life. Sheridan promotes her to captain and she decides to captain a ship instead of stay on B5.