After an absence of seven seasons, tenor Richard Leech will return to the stage of the Met on April 27 as Albert Gregor in The Makropulos Case. He replaces Kurt Streit (who withdrew because of illness) in the entire run of the Janacek opera through May 11. The Makropulos Case, conducted by Jirí Belohlávek and directed by Elijah Moshinsky, also stars Karita Mattila as Emilia Marty, Johan Reuter in his Met debut as Jaroslav Prus, and Tom Fox as Dr. Kolenaty.