Returning to Los Angeles at 19, Peck began training theatrically with Milton Stevens at the Stella Adler Conservatory. He later moved to New York City where he studied with Sherry Landrum and Terry Somner at the New Actors Workshop and with Richard Southern at the Three of Us Studios. Peck immediately relocated back to Los Angeles upon landing the role of Austin Reed.

Peck stays active by boxing and rollerblading. An accomplished cartoonist, he enjoys sketching caricatures of family members, friends and co-stars. He also enjoys music and considers his taste eclectic.