Namesakes
Biblical Characters:
1 character
Judas Thaddaeus (a.k.a. Thaddeus) (m) Luke 6:16 
Olympic Medalists:
1 silver
(silver) Thaddeus Shideler 1904 110 m hurdles
Saints:
3 saints, 2 blessed
Saint Jude Thaddaeus (a.k.a. Thaddeus) ?-65
Saint Thaddeus of Edessa ?-1xx
Saint Thaddeus of Stepantsminda ?-5xx
Blessed Thaddeus McCarthy 1455-1497
Blessed Thaddeus Lieu ?-1823