Suggestions by @danielbrown1

Gary Dourdan

as Warrick Brown in CSI and Hawaii Five-O crossover

Marg Helgenberger

as Catherine in CSI and Hawaii Five-O crossover

Louise Lombard

as Sofia Curtis in CSI and Hawaii Five-O crossover

Jon Wellner

as Henry Andrew’s in CSI and Hawaii Five-O crossover

Paul Guilfoyle

as Jim Brass in CSI and Hawaii Five-O crossover

Ted Danson

as Db Russell in CSI and Hawaii Five-O crossover

William Petersen

as Gilbert Grissom in CSI and Hawaii Five-O crossover

Jorja Fox

as Sara in CSI and Hawaii Five-O crossover

Robert David Hall

as Al robins in CSI and Hawaii Five-O crossover

Eric Szmanda

as Greg Sanders in CSI and Hawaii Five-O crossover

CBS Productions

as Composer in CSI and Hawaii Five-O crossover

Douglas mosman

as Frank in Hawaii Five-O

David Tomlinson

as Blake in Hawaii Five-O

Morton Stevens

as Music composed by in Hawaii Five-O

Seth Green

as Leonardo in my take on a TMNT Animated Movie

Ed Sherman

as Eddie Sherman in Hawaii Five-O

Tim O'Kelly

as Dan Williams in Hawaii Five-O

Deborah Adair

as Diana Rogers in MacGyver

Khigh Dhiegh

as Wo Fat in Hawaii Five-O

George Eads

as Dalton reboot in MacGyver