SG-1 actors in similar roles in Quarantine

[MS]

Saw the 2000 TV movie Quarantine which featured familiar Stargate actors including two who have played similar characters in Stargate at a time SG-1 was still on:
-Teryl Rothery played a scientific researcher which is not that different from her Stargate character of Dr Janet Frasier
-Gary Chalk played a US military officer and was also a military officer in SG-1 as Colonel Chekov albeit a Russian one.

[MS]

Incidentally there is a Stargate Atlantis episode called Quarantine but as far as I can tell the TV movie the Atlantis episode did not share any same actors in their respective productions.