1940s

  • The Tempest (1940) as Ariel with John Gielgud as Prospero and Alec Guinness as Ferdinand at The Old Vic, London

  • Monsieur Lamberthier (1947) as Maurice with Lucie Mannheim in English and German on tour in Germany (British Zone)

  • Rosmersholm (1948) as Johannes Rosmer with his wife Lucie Mannheim as Rebecca West at the Arts Theatre, London. He also directed this production

  • Too True To Be Good (1948) as Aubrey 'Popsy' Bagot with Lucie Mannheim as Susan 'Sweety' Simkins at the Arts Theatre, London. He also directed this production

  • The Cherry Orchard (1948) as Peter Trofimov at the Arts Theatre, London

  • Marriage (1948) as Ivan Kuzmich Podkolyosin with Lucie Mannheim at the Arts Theatre, London

  • The Bear (1948) as Grigory Stepanovitch Smirnov with Lucie Mannheim at the Arts Theatre, London

  • The Third Man/Jealousy/Monsieur Lamberthier (1948-49) as Maurice with Lucie Mannheim at the Arts Theatre, London, Oldham Repertory Theatre Club, Manchester and on tour in Germany (British Zone)

  • Daphne Laureola (1949) as Ernest Piaste with Lucie Mannheim as Lady Pitts on tour in Germany (British Zone)

1950s

  • The Madwoman of Chaillot (1951) as The Rag Picker with Martita Hunt at the St James's Theatre, London

  • Richard III (1953) as Richard III at the Shakespeare Memorial Theatre, Stratford

  • Antony and Cleopatra (1953) as Octavius Caesar with Michael Redgrave as Antony and Peggy Ashcroft as Cleopatra at the Shakespeare Memorial Theatre, Stratford, the Princes Theatre, London

  • The Taming of the Shrew (1953) as Petruchio with Yvonne Mitchell as Katherina at the Shakespeare Memorial Theatre, Stratford

  • King Lear (1953) as The Fool with Michael Redgrave as Lear at the Shakespeare Memorial Theatre, Stratford

  • Antony and Cleopatra (1954) as Octavius Caesar with Michael Redgrave as Antony and Peggy Ashcroft as Cleopatra at Royal Theatre, The Hague & Royal Theatre Carré, Amsterdam, The Netherlands, Koninklijke Nederlandse Schouwburg, Antwerp & Theatre Royal de la Monnaie, Brussels, Belgium, Théâtre des Champs-Élysées, Paris, France

  • Scenes from Shakespeare (1957) leading a company to France at the Théâtre National Populaire, Paris and Annecy, Lyons, Lille, Amiens and Douai

  • Scenes from Shakespeare (1957) leading a company to Helsinki, Finland

  • Scenes from Shakespeare and Classical English Theatre (1958) leading a company to India and Ceylon (Sri Lanka) including Rachel Gurney, Yvonne Furneaux and John Laurie

1960s

  • Savonarola Brown (1960) as Savonarola Brown at the Royal Festival Hall, South Bank, London

  • Measure for Measure (1962) as Angelo with Judi Dench as Isabella (Royal Shakespeare Company production) at Royal Shakespeare Theatre, Stratford

  • A Penny for a Song (1962) as Sir Timothy Bellboys with Judi Dench as Dorcas Bellboys (Royal Shakespeare Company production) at the Aldwych Theatre, London

  • Ménage à Trois (1963) as Charles with Phyllis Calvert at the Lyric Theatre, London

  • King Arthur (Opera) (1963) as The Narrator at the Victoria and Albert Museum, London

  • Oedipus Rex (Oratorio) (1963) as The Narrator at the Royal Festival Hall, South Bank, London

  • The Poker Session (1963-1964) as Teddy at the Gate Theatre, Dublin in the Dublin Theatre Festival (1963) and Globe Theatre, London (1964). Marius played Teddy in the premiere production in Dublin

  • The Apple Cart (1965) as King Magnus with Barbara Murray at the Cambridge Arts Theatre, the Opera House, Manchester, the New Wimbledon Theatre, Theatre Royal, Brighton and The Golders Green Hippodrome

  • The Devil's Disciple (1965) as General Burgoyne with Ian Bannen at the Yvonne Arnaud Theatre, Guildford

  • The Bells (1967-1968) as Mathias at the Derby Playhouse, Alexandra Theatre, Birmingham, Grand Theatre, Leeds and Vaudeville Theatre, London. He also directed it in its Birmingham, Leeds and London productions

  • Married Bliss (1968) at the Alexandra Theatre, Birmingham and Grand Theatre, Leeds. Marius directed this play only and did not act in it. This was curtain raiser to The Bells

  • Lend Me Five Shillings (1968) as Mr Golighty. He also directed it in its production at the Vaudeville Theatre, London. This was curtain raiser to The Bells

  • The Demonstration (1969) as Professor Bright at the Nottingham Playhouse