Lennie Dawson is an outlaw, part of the gang of Luke Storm and his wife Dallas. In the Rawhide episode Incident of the Tumbleweed is seen how he's brought to Fort Gregg for trial. First by Marshal Wilt Jackson and his Deputy Art Gray but when they get killed/injured as the prisoners try to escape, trail boss Gil Favor and his ramrod Rowdy Yates take over.

Lennie Dawson is portrayed by John Larch,