Petrina Kow is one of Singapore's leading Voice Actors and Voice Directors. She has directed many preschool cartoons such as Tomato Twins, Taoshu The Warrior Boy on Nickelodeon and Olive the Rhyme Rescue Crew and Shapes on Okto and many other broadcasters around the world. During this time, she has also developed a knack for working with kids, hers included and is slowly grooming a small army of child Voice-Over talents. She also had the opportunity to voice direct Hong Kong celebrities, Josie Ho and F4's Vanness Wu in the Golden Bell Award winning animation LAMB on Animax. In the last three years, Petrina's also been grooming the LaSalle Musical Theatre students in voice acting and voice-overs.

Besides lending her voice to many TV and radio commercials, Petrina is also the voice of BBC 88.9FM and Starhub. She is currently hosting Lush Mornings with with Joe Augustin on 99.5FM and was previously hosting with The Flying Dutchman on The Morning Express on Class 95FM. She also pioneered the only radio talk show The Living Room on 938LIVE.

Petrina is also a popular host/emcee for corporate events and company dinners, with clients as diverse as, Abbot Labs, Dumex, McDonalds Singapore, CPB, (Companie De Banque Privee) APB, Her World Magazine's Woman of the Year, Allen and Gledhill LLP and many others.

Petrina has also performed in many plays and musicals such as Michael Chiang's My Lonely Tarts, You're A Good Man Charlie Brown and Dream Academy's Crazy Christmas 2008. Petrina found herself back on stage again in 2010 this time performing with her daughter in AWARE's Superwomen Concert in June at the Esplanade Concert Hall complete with matching costumes and hair! She will be appearing in her first musical at the end of the year with Dream Academy in Steven Sondheim's Company.