. "Dijkgraaf is currently retired from acting and operates his own production and marketing company, Dijkproducties B.V. In 2008 in the program 'Knowing me Knowing you' Leo made a comeback as Pino and sang the song 'Roken'."@en . "Dijkgraaf is currently retired from acting and operates his own production and marketing company, Dijkproducties B.V. In 2008 in the program 'Knowing me Knowing you' Leo made a comeback as Pino and sang the song 'Roken'."@en . . . "Leo Dijkgraaf"@en .