This is the fifth and final time a character with the surname Hightower has appeared in an episode: - Lee Hightower (Cherrelle E'Lan), - William Hightower (Sharif Atkins) and - Maxine Hightower (Vernee Watson) in To Hell... (2009) - Louise Hightower (Deborah Puette) in The Internet Is Forever (2010) - Officer Rudy Hightower (Scott Broderick) in Lockdown (2015)
The missing inmate in this episode was named Devon White, the same name as a Major League Baseball player who was active from 1985-2001, mostly with the California Angels and Toronto Blue Jays.
When Kate is walking out of the prison a song is playing about ghosts. Jennifer Love Hewitt starred in the series 'Ghost Whisperer' as someone who could see and talk to ghosts.