Liam Trondheim was a Solarian citizen and an officer of the Solarian Gendarmerie.
In 1922 PD, he held the rank of Colonel and served as General Francisca Yucel's deputy in the Meyers System. During her absence due to an intervention mission in the Mobius System, Meyers was attacked by the Royal Manticoran Navy Tenth Fleet. After the local Solarian League Navy picket had fled, it fell to Colonel Trondheim to surrender Meyers to Admiral Gold Peak. (SI3)