Trevor Halverson was born in the Northern Ontario town of White River and played his major junior hockey with the North Bay Centennials of the OHL. He was drafted in the first round, 21st overall by the Washington Capitals in 1991. Trevor spent the his first pro-hockey season with the Baltimore Skipjacks of the AHL before moving around between various AHL, IHL and ECHL teams. The 6'1 left winger paid his dues in the minors before finally getting a shot in the big league with the Capitals. He played in 17 games for the Caps during the 1998-99 NHL season, scoring 4 assists and adding 28 penalty minutes. He did not get back into the NHL and stopped playing pro-hockey in 1999.