This information came from James Marsters Forum. They are closing on Jan.1 and I didn't want this info to be lost. So with much thanks to English Woman here are:

James Marsters Theatre Roles:

The role of Ferdinand in ‘The Tempest’ in 1987 – Goodman Theatre, Chicago

Pedrille in the ‘Marriage of Figaro in 1987 and 1988 – Northlight Theatre, Chicago

Tod Kemp in ‘Mortal Risk’ in 1988 – Chicago Cooperative Stage, Chicago

The part of a navy officer in ‘Being Friends Lost’ in 1988 – Bailiwick Repertory, Chicago

Directed ‘Something Unspoken’ in 1989 – Genesis Theatre, Chicago

Teageus in a ‘Phoenix too Frequent’ in 1989 – Genesis Theatre, Chicago

Segismundo in ‘Life is a Dream’ in 1989 – Bailiwick Repertory, Chicago

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Directed – ‘Phoenix too Frequent’ in 19991 – New Mercury Theatre, Seattle

Directed – ‘Life is a Dream’ in 1993 – New Mercury Theatre, Seattle

Directed – ‘Criminals in Love’ in 1993 – New Mercury Theatre, Seattle

An apprentice in ‘The Shawl’ in 1994 – New Mercury Theatre, Seattle

A taxi driver in Victoria Station in 1994 – New Mercury Theatre, Seattle

A wastrel in ‘Killers’ in 1994 – New Mercury Theatre, Seattle

A local misfit in ‘Voices in the Dark’ in 1994 – Contemporary Theatre, Seattle

The role of Torvald in ‘The Dolls House’ 1995 - Theatre on the Square, Seattle

The role of Andrew Aguecheek in ‘Twelve Night’ in 1996 – Ethnic Cultural Theatre, Seattle

The role of Macbeth in ‘Macbeth’ in 1996, Ethnic Cultural Theatre, Seattle

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Appeared in ‘The Why’ in Los Angeles in 2000
The role of Sebastion in ‘The Tempest’ possibly 2000/2001 in a Festival in Los Angeles
Appeared in several roles in Teechurs at the Queen Mary Event in 2006.

would love to see him in a play, still wait for a DVD release on his UK-site

Yes,I agree. I thought there would be a new DVD after the Queen Mary event. But nothing yet.