Roger Pelletier was born June 22, 1945 in Montreal, Quebec. A graduate of the Quebec Junior Hockey League's Quebec Citadelle, Pelletier joined the Quebec Senior Hockey League's Thetford Mines Aces in 1965-66 where he spent the majority of the year while playing in one game with the American Hockey League's Quebec Aces.
In 1966-67 Pelletier returned to the Aces before having his NHL rights transferred to Philadelphia after the NHL club purchased the Aces franchise in May of 1967. Although he spent the majority of the 1967-68 season with the Aces, Pelletier played in his first and only NHL game with the Flyers.
The Montreal, Quebec native returned to Quebec in 1968-69 and spent the next three seasons with the club after being claimed from Philadelphia in the 1969 Reverse Draft. Following his three seasons with the Aces, Pelletier joined the Richmond Robins where he spent three years before being traded midway through his third season to the AHL's Springfield Kings where he finished his career.
Throughout his career, Roger Pelletier played in one NHL game.