Several cast members each appear as more than one party-goer, changing costumes to disguise this fact. Also, actress Bonnie Holiday discards her "older" appearance as the mother earlier in the film to reappear as an extra at the party. Similarly, actor David Pinney (the father in the film) covers his face with a mask and appears at the party in a sex scene as a different character.
The poster for Reflections (seen on the DVD box cover) mentions several cast members not credited in the Reflections on-screen cast list. They are: Sandy Pinney (as Sandi Penney), Beth Ruberman (as Heather Grant), Christine Kelly (as Chris Surili), Joey Silvera (as Joe Nassivera), Ray Wells and Turk Lyon (as Bob Miglietta).