According to Wikipedia
http://en.wikipedia.org/wiki/Michelle_Pfeiffer#Children
her son is "John Henry" Kelly who was born in 1994:
"Pfeiffer and Kelley have two children, one adopted daughter and one biological son. Pfeiffer, who was by her own admission desperate to start a family, had entered into private adoption proceedings before she even met Kelley.[43] The biracial baby girl she adopted had been born in March 1993, to the late Cynthia Ann Reintges of Grand Rapids, Michigan and Lawrence Booker of Wyoming, Michigan. She christened Claudia Rose in November 1993, on the same day that Pfeiffer and Kelley were married.[44] Pfeiffer immediately became pregnant, and in August 1994, gave birth to a son, John Henry."
and according to http://www.celebritywonder.com/html/michellepfeiffer.html
his last name is "Kellly"
Name:
Michelle Pfeiffer
Height:
5' 7½
Sex:
F
Nationality:
American
Birth Date:
April 29, 1958
Birth Place:
Santa Ana, California, USA
Profession:
actress, model, producer
Education:
Fountain Valley High School, Fountain Valley, California
Golden West College, Huntington Beach, California (majored in Court Reporting)
Husband/Wife:
David E. Kelley (producer, screenwriter, creator of the shows The Practice and Ally McBeal; born on April 4, 1956; married November 13, 1993), Peter Horton (actor, director; born on August 20, 1953; married 1981; divorced 1990)
Relationship:
John Malkovich (actor), Fisher Stevens (actor; 1989-1991), Val Kilmer (actor)
Father:
Dick Pfeiffer (heating and air-conditioning contractor)
Mother:
Donna Pfeiffer
Sister:
Dedee (aka Didi, DeDee; actress), Lori
Brother:
Rick (older)
Son:
John Henry Kelley (father: David E. Kelley)
Daughter:
Claudia Rose Kelley (adopted ~ biological parents Lawrence Hubert Booker and the late Cynthia Ann Reintges)
Claim to fame:
as Susie Diamond in The Fabulous Baker Boys (1989)
Michelle Pfeiffer's birth name is Michelle Marie Pfeiffer.
Blake Bradford's birth name is Kary Blake Bradford.
Michelle Rodriguez was born in Texas. so the last name is Rodriguez so Michelle Rodriguez can be Mexican like her little sis Kelly Lynn Rodriguez
Michelle Bayle's birth name is Michelle Louise Q. Bayle.
Michelle Lineker's birth name is Michelle Cockayne.
Michelle Pfeiffer's birth name is Michelle Marie Pfeiffer.
Batman Returns. 1992 Catwoman was played by Michelle Pfeiffer
Pfeiffer is a German name- an occupational name for a pipe player.
His last name (and Michelle's maiden name) was Robinson.
Marilyn Monroe, Meryl Streep and Michelle Pfeiffer are famous actresses.
Dangerous Minds (1995).
Michelle's last name was Williams
The leader of the Pink Ladies was Stephanie Zinone who was portrayed by Michelle Pfeiffer.
All three were in a movie with Robert Redford: The Natural (Kim Basinger), Out of Africa (Meryl Streep), Up Close and Personal (Michelle Pfeiffer). All three were Oscar nominated for a Best Supporting Actress: Meryl Streep: The Deer Hunter, Michelle Pfeiffer: Dangerous Liaisons, Kim Basinger: L.A. Confidetional All three have an M in their name.
Michelle's last name is Duggar. The entire family shares the same last name.
"Frankie and Johnny" (1991). Stars Al Pacino, Michelle Pfeiffer, Hector Elizondo, Nathan Lane.
Mary Lee (née Pfeiffer),