Picard started his NHL career with the Montreal Canadiens in 1965. He later played for the St. Louis Blues and Atlanta Flames. Picard retired after the 1973 season, winning one Stanley Cup with Montreal in 1965. He is noted for tripping Bobby Orr of the Boston Bruins after Orr scored the series-winning goal of the 1970 Stanley Cup Finals, sending a jumping Orr flying through the air with his arms raised in celebration. This image stands as one of the most famous action shots in North American sports history.
Picard was a broadcaster for Blues games after he retired. He purchased Midway, a restaurant in Cuba, Missouri, in 1976 and later sold. He returned to Montreal, where he died in 2017.
Picard had two children with his wife Viviane who were raised in the St. Louis area; a daughter Annie in Chicago, and son Dan (who lives in New Baden, Illinois). Picard was the younger brother of Roger Picard, whom he briefly played with in St. Louis for one season.