Casey Sander

Description   [from Freebase]

Casey Clinton Sander (born July 6, 1956) is an American actor known as the character "Captain" Jimmy Wennick on the short-lived TV series Tucker. His television credits also include The Golden Girls, Grace Under Fire, Home Improvement, Malcolm in the Middle, Buffy the Vampire Slayer (on which he portrayed the father of Xander Harris), and Hunter among other shows. He also portrayed Bernadette's father in the TV sitcom, The Big Bang Theory. Sander was born in Washington, D.C. His father was an Air Force lieutenant colonel.
Portions from Freebase, licensed under CC-BY and Wikipedia licensed under the GFDL