The Big Bear Sentry was voiced by Gary Files.
- The Big Bear Sentry was previously the Assassin and the 6th London Police Officer. It later appears as MCA Tanker Driver Pete in Point 783, the Delta garage Attendant in Special Assignment, Kruger in The Heart Of New York in the Sergeant in Treble Cross and a Spectrum Guard in Codename Europa.
- In Joe 90 it appears as the Base 513 Guard in The Most Special Agent, the Border Guard in International Concerto, Rollins in Relative Danger, Sherman in Double Agent and Commander Kovac in Arctic Adventure.
- In The Secret Service, it made an appearance as the Foreign Ambassador in A Case for the Bishop, with a moustache and as Mullins in More Haste Less Speed.