Los Supersónicos
Cosmo G. Spacely (voiced by Mel Blanc in the TV series, Daws Butler in "The Jetsons in First Family On The Moon", Billy West in a WBCN commercial, Frank Welker as a teenager in "The Jetsons Christmas Carol", Jeff Bergman since 1990, and Greg Burson in "Bloopers of the Cartoon Stars" (1997)) is George's moneygrubbing and arrogant boss.