Conversation so far:
what happened to michelle phillips in 1987?
Phillips starred for six seasons on Knots Landing as the constantly scheming Anne Matheson Sumner, the mother of star Nicollette Sheridan's character Paige Matheson.
was he successful on the show?
CANNOTANSWER.

Question: did he play in any other shows?
Self-contained rewrite: did Michelle Phillips play in any other shows other than Knots Landing?