After engagements in Münster, Bremen and Wuppertal, in 1963 he received a permanent position with the Staatliche Schauspielbühnen Berlin, operators of the Schiller Theatre.
In addition to various roles in film and television, Bauschulte also worked extensively as a voice-over actor for German language media.
His best known such role was as the voice of Lieutenant Mike Stone in the US TV series The Streets of San Francisco, played by Karl Malden.
Other dubbing roles included Richard Attenborough in Jurassic Park, Alec Guinness in Murder by Death (German title, Eine Leiche zum Dessert), Edward Platt in the television series Get Smart (German title, Mini-Max) and Barnard Hughes in the television series Mr. Merlin.
He also performed in numerous other radio plays, for example between 1959 and 1962 in three multi-part serials in the Paul Temple series on Westdeutscher Rundfunk and in 1978 as the narrator in Der liebe Herr Teufel.