Moreland, 56, spent six of his 12 major league seasons with the Cubs from 1982 to 1987, helping the Cubs win the 1984 National League East title. He played third base, first base, outfield and catcher while he was with the team.
Moreland brings 16 years of experience as the radio color analyst of the University of Texas baseball program to his new job. He has also been a fill-in analyst for Cubs radio and television broadcasts.
"I'm very excited to work with a great broadcaster in Pat Hughes, a great team in the Cubs that I was lucky enough to play for and a great radio station that has the power to reach millions of Cubs fans," said Moreland. "I'm not a replacement for Ron Santo -- he's impossible to replace," added Moreland.
"Keith will display the same passion, instincts and knowledge for the game during our WGN radio broadcasts as he did on the field," said Crane Kenney, president of the Cubs.