Mark Seibert, born in 1960 in California, is known as an American musician,
composer, and producer. From 1979 to 1986, he performed guitar and vocals for
Omega Sunrise, recording two albums: Feel the Change (1983) and Run from the
Night (1985). Seibert joined Sierra On-Line in 1987 as a musician. He
contributed to soundtracks including Police Quest II: The Vengeance (1988),
Quest for Glory: So You Want to Be a Hero (1989), King's Quest V: Absence Makes
the Heart Go Yonder! (1990), and Phantasmagoria (1995). Seibert left Sierra
On-Line in 2001.