Namesakes
Characters in Greek Mythology:
1 character
Cassandra (f) 
Fictional Characters from Song Titles:
2 characters
(character) Cassandra 2009 Cassandra
(character) Cassandra 2011 Cassandra
Notable Actors and Entertainers:
4 actors
Cassandra Harris 1948-1991
Tara Fitzgerald (a.k.a. Cassandra) 1967-
Andra Day (a.k.a. Cassandra) 1984-
Cassie Scerbo 1990-
Notable Musicians:
2 singers
Cassandra Wilson 1955-
Andra Day (a.k.a. Cassandra) 1984-
Notable Writers:
1 author
Cassandra Clare 1973-
Olympic Medalists:
1 bronze
(bronze) Cassie Patten 2008 swimming - marathon 10 km
Shakespearian Characters:
1 character
Cassandra Troilus and Cressida