Jack Mercer (the voice of Popeye and King Little, Sneak, Snoop, Snitch, and Twinkle Toes in Gulliver’s Travels) was regularly cast alongside Colvig, as either a king, mayor, snitch, fish, castle worker, fire fighter, or sometimes even as Gabby's humming.
The Gabby cartoons were sold to U.M. & M. TV Corporation in 1955, which later became part of National Telefilm Associates, which became Republic Pictures, and was then sold to Paramount's current parent ViacomCBS (now currently renamed and rebranded as Paramount Global) in 1999. Today, the Gabby cartoons are in the public domain. For official releases, the cartoons are currently syndicated on television by Trifecta Entertainment & Media (inherited from CBS Television Distribution and other companies), original distributor Paramount owns the theatrical rights, and Olive Films owns the DVD rights. However, most Gabby cartoons can be found in faded public domain television prints, usually featuring National Telefilm Associates openings.