Namesakes
Notable Athletes:
1 boxing
(boxing) Muhammad Ali (a.k.a. Cassius) 1942-2016 
Notable Philosophers and Thinkers:
1 historian
Lucius Cassius Dio (a.k.a. Cassius) c. 155-c. 235
Notable Politicians and Statespeople:
1 statesperson
Gaius Cassius Longinus (a.k.a. Cassius) c. 86-42 BC
Saints:
4 saints
Saint Cassius ?-264
Saint Cassius ?-295
Saint Cassius ?-303
Saint Cassius of Narni ?-558
Shakespearian Characters:
1 character
Cassius Julius Caesar