TV Line reports that the two actresses will appear alongside the previously-cast Annie Ilonzeh as the traditional crime-fighting trio.
Transformers star Taylor will play Abby, a martial arts expert and con artist. She previously starred in Australian series Headland and will appear in an upcoming episode of Grey's Anatomy.
The third angel was originally a former U.S. marine named Marisa, but the character is now being retooled to fit the recently-cast Kelly. The actress played Lyla Garrity on Friday Night Lights from 2006 to 2009 and recently featured on NBC's Parenthood in a recurring role.
Hart to Hart star Robert Wagner was also previously cast in the Charlie's Angels
pilot as the voice of the enigmatic Charlie.
Smallville creators Alfred Gough and Miles Millar wrote the script for the reboot and will also executive produce alongside Hollywood star Drew Barrymore, Leonard Goldberg and Nancy Juvonen.