As of 2017, Sonny Carl Davis is the only actor to appear in all 6 Evil Bong movies. 7 if you include Gingerdead Man vs Evil Bong (2013).
The clock in the stoner's dorm always reads "4:20"
Several characters from other Full Moon Pictures films appear in Bong World. Visitors include Ooga Booga, Gingerdead Man, Jack Deth from Trancers, Quinn from Crash and Burn, and Jack Attack from Demonic Toys. The Gingerdead Man would later challenge Eebee in 2013's Gingerdead Man vs. Evil Bong.