Just a few things to clarify for you:
Yes, that is Dr. Mickey Klink guest starring as a rapper
Yes, that is Dr. Scott Yoshikawa guest starring as himself (a Greek professor)
And just so you know, "Koine" is the form of ancient Greek that the New Testament was originally written in. It is what I studied for 2 grueling years at Biola...and this video just makes it all worth it!!! So great!!!