Rheneas is a red narrow guage engine.
- Season 2 - Don't Be Late! (does not speak), Duncan's Predicament, Welcome Smudger, and Sir Handel and the Ghost Engine (cameo)
- Season 3 - Peter Sam and the Snow (cameo), Duncan and Luke, The Truth is Revealed, and An Earned Apology
- Season 4 - Trapped (cameo), Mud and Roads, A Second Language, and Welcome Back, Jack!
- Season 5 - High and Mighty, The Fastest Engine in the Hills, and Down the Bridge
- Season 6 - The Thin Controller's Assistant,
|Skarloey • Rheneas • Sir Handel • Peter Sam • Rusty • Duncan • Ivo Hugh • Duke • Jayden • Fred • Albert|
|Bertram • Mighty Mac • Freddie • Luke • Proteus • Paul|