Clarissa Dalloway - Fifty year old protagonist who is throwing a party for her friends. She is a member of the high society group and tends to be very self-conscious in regards to her position. She is married to Richard, has a daughter named Elizabeth, and has dated Peter and Sally in the past.
Peter Walsh - An old friend of Clarissa's who had been engaged to her in the past. Recently moved back to England from India and plans on marrying a woman named Daisy whom he had met during his stay there.
Septimus Warren Smith - A World War One veteran who is suffering from Post-Traumatic Stress Disorder. He has grown detached from the rest of humanity and often hallucinates of his deceased fallen comrades. He is married to Lucrezia.
Sally Seton - Clarissa's best friend and love interest as a teenager. She is married, has five children, and has strained relations with her own family. She is known for being un-lady like and rather forward.
Lucrezia "Rezia" Smith - Married to Septimus after meeting him during the first world war while he was stationed in Italy. Now living in England with him, she is often embarrassed by his outburst and is longing to return back to Italy to be with her family.
Richard Dalloway - Clarissa's distant husband and a proud government worker.
Sir William Bradshaw - Septimus's therapist and upper-class friend of Clarissa's. Obsessed with his power