Facial hair

Some Transformers have facial features that resemble human facial hair. These features sometimes indicate age, but this is not always the case.

Generation 1

 * A3/Alpha Trion
 * Detritus
 * Early Decepticon leader
 * Scourge
 * Unicron
 * Wreck-Gar

Beast Machines

 * Silverbolt

Unicron Trilogy

 * Alpha Trion/Sig-Omega
 * Bulkhead
 * Leviticus
 * Quickstrike