Daniel Henney is the first actor from one of the Criminal Minds (2005) spin-offs to join the main cast of the parent series. Criminal Minds: Beyond Borders (2016) was the second spin-off, canceled after two seasons.
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Penelope's full name is revealed to be Penelope Grace Garcia.
"Wheels up in 30" is a line routinely that was spoken by former Unit Chief SSA Aaron (Thomas Gibson). As unit chief, Prentiss (Paget Brewster) continued to use the phrase.