Career
He performed in numerous television shows beginning in the early 1950s, including Johnny Staccato, Lassie, Peyton Place, The Fugitive and Star Trek TOS. He appeared in the first episode of The Twilight Zone, entitled "Where Is Everybody?". The Buffalo, New York-born Walberg was probably best known for his role as LAPD Homicide Lieutenant Frank Monahan in Quincy, Mechanical Engineering (1976-1983), starring Jack Klugman in the title role.
Walberg had previously appeared alongside Klugman in The Odd Couple (1970-1975) as Oscar"s poker crony, Homer "Speed" Deegan.
He reprised the role in the 1993 television movie The Odd Couple: Together Again. Walberg died from chronic pulmonary disease on March 26, 2012, aged 90, in Northridge, California.