Madelaine Petsch and Nathalie Boltt
Boltt first started appearing in South African tv shows at 25, and Petsch, playing Penelope this week, is currently 24.
Michael Consuelos and Mark Consuelos
Is it weird that Michael looks more like Mark than Mark does?! Consuelos' real life son, who is currently 21, is playing his younger self. One of Mark's first roles at age 30 was in an episode of Friends.
Cole Sprouse and Skeet Ulrich
Skeet Ulrich was 26 when he starred in Scream and The Craft, and Sprouse just so happens to currently be 26.
Ashleigh Murray and Robin Givens
Robin Givens starred in Head of the Class starting in 1985, when she was 21. Murray is currently 30.
Camila Mendes and Marisol Nichols
Nichols was 23 when she guested on Beverly Hills, 90120, and 24 when she appeared on ER. Mendes is currently 24.
KJ Apa and Luke Perry
Luke Perry starred in Beverly Hills, 90210 starting when he was 24. KJ Apa is currently 21 and crushing that Dylan McKay impression.
Lili Reinhart and Madchen Amick
Amick was about 19 at the start of Twin Peaks, and Lili Reinhart is currently 22.