While at Mount Allison University, Reardon considered pursuing a career in medicine, but growing up, his dream was to become a professional athlete.

According to Reardon, "Greg on the surface appears to be a clean-cut family man who is a respectable law-abiding member of society.

The memory of Greg, along with their son Sam, is an anchor for Kiera when she is transported back in time and taken away from her family.

His sidekick and fellow member of the SJPD is a K-9 dog named Rex who had lost his human partner in a case they were working.

Charlie was the only one at the scene that was able to get Rex to step away from his partner's body, and the two formed an unbreakable bond as they began to work cases together.