He attempted to sue
Aaron Spelling Productions in the early 1990s for not telling him early enough about the mini-series
Der Denver-Clan: Die Entscheidung (1991)
(Thomson had starred in the original series
Der Denver-Clan (1981) from 1982-1989). In the years following the original "Dynasty," Thomson had become a cast member of the daytime soap
California Clan (1984) and was unable to take time off because of the conflicting schedules. His role on "Dynasty: The Reunion" was recast with actor
Robin Sachs.