This week, Zoey Deutch begins a brief arc on ABC Family's "Switched at Birth."
 
While it's a nice get for the acclaimed family drama to land one of the co-stars of "Beautiful Creatures" and The CW's "Ringer" for a multi-episode run, Deutch's appearance is really a not-quite-family reunion.
 
See, Deutch's mother, Lea Thompson, is one of the stars of "Switched at Birth," but the two apparently don't share any scenes together.
 
Find out what makes the role "good ol' TV incest" in this brief clip from HitFix's Dan Fienberg's interview with Deutch (and "Beautiful Creatures" co-star Thomas Mann). 
 
Deutch appears in Monday (Feb. 18) night's "Switched at Birth," while "Beautiful Creatures" is now in theaters.