(since 1997): plays Sjaak in TV-commercials for Gamma, with actor John Buijsman.
(since 1997): voice-over in 'TV-commercial' for KitKat.
Martin forms theater duo "Waardenberg en de Jong" with Wilfried de Jong. The programs they made are: Begin maar vast (1985); De gekkengalerij (1988); Jool Hul (1990); Waardenberg en de Jong (1992); Naggelwauz (1994); Bandkaai (1996)