I think people should also know the books of the new Testament: Matthew, Mark, Luke and John (and Ringo)
Fun fact, I decided that the name of the main character of the story I'm writing should be called Chris, and later decided to name his male relatives after the books of the bible (his dad's called John, his brother's called Mark and his future sons are called Matthew and Luke). Which is how you do a Christ reference right. With Subtlety.
Hmm...
*looks up the names of the apostles*
Simon/Peter
Andrew
James
John (not the same as "John the Baptist")
Philip
Thaddeus
Bartholomew
Thomas (Judas Thomas Didymus)
James the Less
Matthew
Simon the Canaanite
Judas Iscariot
I'd say these are all names one should be familiar with as well (considering they were all present for the last supper), but I haven't heard of more than half of these guys.