Len Kasper is once again living his dream

Len Kasper, shown in 2012 with former broadcast partner Jim Deshaies, surprised fans on both sides of town by switching from Cubs television to White Sox radio.‘’Traitor.”

That’s the tweet Len Kasper has received dozens of times since announcing he was leaving Cubs TV for White Sox radio.

All Kasper had done in 16 years on the North Side — equaling Hall of Famer Harry Caray — was call the action with an acuity that had been missing from the team’s play-by-play voice for years. But the ugly side of the Cubs-Sox rivalry, not to mention social media, still pops up in his Twitter feed.

Amiable in demeanor and composed in manner, Kasper finds a compliment in the ire.

‘‘I take it as a sense of some…