Popes
Three of the early popes were either from Africa themselves or children of African immigrants to Rome. All three were from this time period and are traditionally considered saints. They are:

Pope Saint Victor I
(189-199)

Pope Saint Miltiades
(311-314)

Pope Saint Gelasius I
(492-496)
Doctors
Three of the thirty-five Doctors of the Church were from Africa, all of them from this time period. They are:

Saint Augustine of Hippo,
(present-day Algeria)

St. Athanasius of Alexandria
(present-day Egypt)

Saint Cyril of Alexandria
(present-day Egypt)
Writers and Theologians
Many of the early writers and theologians had connections with Africa. A partial list would include:

St Mark the Evangelist
author of the Gospel that bears his name and founder of the Patriarchate of Alexandria

St. Apollos
may be author of the Epistle to Hebrews

Saint Ammon the Abbot

Saint Anatolius of Laodicea
of Egypt

Saint Aurelius
of Tunisia

Saint Clement of Alexandria
author of several works, whose cult in the Latin Rite has been suppressed

Saint Cyprian of Carthage
author of several works

Saint Didymus the Blind

Saint Fulgentius of Ruspe
of Tunisia

Saint Isidore of Pelusium
author of several letters

Saint Optatus
author against Donatism

Saint Pierius

Saint Possidius
author of a life of St. Augustine

Saint Quodvultdeus
Others
In addition to the categories above, these first centuries gave the Church many other saints, among them:
- Saint Abraham the Poor, of Egypt
- Saint Abraham of Alexandria, of Egypt
- Saint Achillas of Alexandria, of Egypt
- Saint Adrian of Canterbury, of North Africa
- Saints Aizan and Sazan, of Ethiopia
- Saint Alexander of Alexandria, of Egypt
- Saint Alypius of Thagaste, of Algeria
- Saints Ammon the Martyr and companions, of Egypt
- Saint Anastasius Sinaita, of Egypt
- Saint Anthony the Great, of Egypt
- Saints Apollonia of Alexandriaand companions, of Egypt
- Saint Arcadius of Mauretania, of Algeria
- Saints Arethas, Ruma and companions, of Ethiopia
- Saints Armogastes and Saturus, of Tunisia
- Saints Athanasiaand Andronicus, of Egypt
- Saint Bessarion of Egypt
- Saint Caecilius, spiritual father to Saint Cyprian of Carthage, of Tunisia
- Saint Cassian of Tangier, of Morocco
- Saint Catherine of Alexandria, of Egypt
- Saint Cerbonius, of North Africa
- Saint Crispina, of Algeria
- Saint Cucuphas, of Tunisia
- Saint Damian of Alexandria, of Egypt
- Saint Demetrius of Alexandria, of Egypt
- Saint Deogratias of Carthage, of Tunisia
- Saints Denise, Dativa, Leontia, Tertius, Emilianus, Boniface, Majoricus, and Servus, of Tunisia
- Saint Dionysius of Alexandria, of Egypt
- Saints Donatian and companions, of North Africa
- Saint Epenetus of Carthage, of Tunisia
- Saint Eugenius of Carthage, of Tunisia
- Saint Fabius, of Algeria
- Saints Felix of Abbir, Cyprian of Unizzibir, and companions, of Libya
- Saint Felix of Hadrumetum, of Tunisia
- Saint Felix of Thibiuca, of Tunisia
- Saint Frumentius, of Ethiopia
- Saint Gaudiosus of Naples, of Tunisia
- Saint Isidore of Alexandria, of Egypt
- Saint Isidore of Chios, of Egypt
- Saint John of Egypt, of Egypt
- Saint Julia of Corsica, of Tunisia
- Saint Kaleb of Axum(Elesbaan), of Ethiopia
- Saint Lucius of Cyrene, of Libya
- Saint Marciana of Mauretania, of Algeria
- Saint Macarius of Alexandria, of Egypt
- Saint Abraham the Poor, of Egypt
- Saint Abraham of Alexandria, of Egypt
- Saint Achillas of Alexandria, of Egypt
- Saint Adrian of Canterbury, of North Africa
- Saints Aizan and Sazan, of Ethiopia
- Saint Alexander of Alexandria, of Egypt
- Saint Alypius of Thagaste, of Algeria
- Saints Ammon the Martyr and companions, of Egypt
- Saint Anastasius Sinaita, of Egypt
- Saint Anthony the Great, of Egypt
- Saints Apollonia of Alexandriaand companions, of Egypt
- Saint Arcadius of Mauretania, of Algeria
- Saints Arethas, Ruma and companions, of Ethiopia
- Saints Armogastes and Saturus, of Tunisia
- Saints Athanasiaand Andronicus, of Egypt
- Saint Bessarion of Egypt
- Saint Caecilius, spiritual father to Saint Cyprian of Carthage, of Tunisia
- Saint Cassian of Tangier, of Morocco
- Saint Catherine of Alexandria, of Egypt
- Saint Cerbonius, of North Africa
- Saint Crispina, of Algeria
- Saint Cucuphas, of Tunisia
- Saint Damian of Alexandria, of Egypt
- Saint Demetrius of Alexandria, of Egypt
- Saint Deogratias of Carthage, of Tunisia
- Saints Denise, Dativa, Leontia, Tertius, Emilianus, Boniface, Majoricus, and Servus, of Tunisia
- Saint Dionysius of Alexandria, of Egypt
- Saints Donatian and companions, of North Africa
- Saint Epenetus of Carthage, of Tunisia
- Saint Eugenius of Carthage, of Tunisia
- Saint Fabius, of Algeria
- Saints Felix of Abbir, Cyprian of Unizzibir, and companions, of Libya
- Saint Felix of Hadrumetum, of Tunisia
- Saint Felix of Thibiuca, of Tunisia
- Saint Frumentius, of Ethiopia
- Saint Gaudiosus of Naples, of Tunisia
- Saint Isidore of Alexandria, of Egypt
- Saint Isidore of Chios, of Egypt
- Saint John of Egypt, of Egypt
- Saint Julia of Corsica, of Tunisia
- Saint Kaleb of Axum(Elesbaan), of Ethiopia
- Saint Lucius of Cyrene, of Libya
- Saint Marciana of Mauretania, of Algeria
- Saint Macarius of Alexandria, of Egypt
Wikipedia