As discussed in the 7th edition manual on p. 259, Section 8.7 Interviews, there are three types of interviews:
Published interviews - follow the format for the reference type (magazine article, podcast, etc.)
Example from a magazine article:
O’Connell, S. (2010). Atul Gawande: Lists are key to survival. New Scientist, 205(2748), 25. https://doi.org/10.1016/S0262-4079(10)60410-1
Personal interviews - because the reader cannot recover this information, treat it as personal communication.
The reference list in an APA paper includes only works that can be found by the reader:
Since a personal interview is not published anywhere, it is considered personal communication and is not included in the reference list. It is, however, cited within the body of the paper. For example: (J. Hernandez, personal communication, May 25, 2018).
Research participant interviews - do not require a citation.