Notable for portraying Andy on the ABC comedy series According to Jim, Campbell is also known for his recurring role on the Lifetime series The Protector, as well as for his guest spots on Friends, My Name is Earl, The New Adventures of Old Christine, and Dog with a Blog.
After earning an undergraduate theater degree from Central Michigan University, he received his MFA from Wayne State University.
His film credits include roles in the 2002 movie Showtime and the 2005 film Wedding Crashers.
He spent his early years in the towns of Cadillac and Pontiac, Michigan. His marriage to Peggy Johns Campbell resulted in two sons and three daughters, including a set of fraternal twins.
While performing with the Detroit branch of the famous Second City comedy troupe, Campbell was discovered and mentored by Comedian Bob Saget.