Graduated from San Francisco State College, now San Francisco State University.
Worked his way up to from the ABC mail room after graduating with a film degree from San Francisco State.
An active member of the DGA's Political Action and Movies for Television committees, Holcomb was also the co-chair of the Television Creative Rights Committee and served on the Western Directors Council from 1995-2012.
Served as chair of the Directors Guild of America's television creative rights committee.