Murphy was born on the small Caribbean island of Dominica. After coming to Canada with his parents at the age of four, Murphy was persuaded to start acting and graduated from the Humber College Acting for Film and Television program. He is known for playing the character Bishop in How She Move, and a supporting role as Flipper in Poor Boy's Game. He also works in television and is known for his recurring role as Eric, Marco Del Rossi's boyfriend, in Degrassi: The Next Generation, and for playing Giles, Carlos's brother in The Line. He also had a starring role in the move Saving God as Norris.