Wonder Woman

Watch Wonder Woman Season 3 Episode 21 Online

“The Boy Who Knew Her Secret (2)” — Watch "Wonder Woman" Season 3 Episode 21 online in HD for free. Check streaming providers, cast, and episode details.
May 29, 1979 Season 3 Episode 21 50 min PG
6.5 ★ ★ ★ ★ ★
2 votes
Wonder Woman Season 3
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Season 3 Episode 21 — Aired on May 29, 1979 • runs about 50 minutes.

Directed by Leslie H. Martinson.

Written by Anne Collins.

Notable cast/guest names in this episode include Lynda Carter, Lyle Waggoner.

This page includes 1 official still(s) (when available) plus legal availability links.

Looking for “watch Wonder Woman Season 3 Episode 21 online”? This is a legal-only guide with synopsis, stills, and navigation for this season.

Synopsis

Humans who have been 'possessed' by the pyramid aliens search for an alien criminal who has the power to shape-shift into anyone, even Wonder Woman.

Stills

Still from Wonder Woman - Season 3 Episode 21

Cast

Lynda Carter
Lynda Carter
as Wonder Woman / Diana Prince
Lyle Waggoner
Lyle Waggoner
as Steve Trevor

Episodes – Season 3

3 - 1
Wonder Woman - Season 3 Episode 1
My Teenage Idol Is Missing
Sep 22, 1978
3 - 2
Wonder Woman - Season 3 Episode 2
Hot Wheels
Sep 29, 1978
3 - 3
Wonder Woman - Season 3 Episode 3
The Deadly Sting
Oct 6, 1978
3 - 4
Wonder Woman - Season 3 Episode 4
The Fine Art of Crime
Oct 13, 1978
3 - 5
Wonder Woman - Season 3 Episode 5
Disco Devil
Oct 20, 1978
3 - 6
Wonder Woman - Season 3 Episode 6
Formicida
Nov 3, 1978
3 - 7
Wonder Woman - Season 3 Episode 7
Time Bomb
Nov 10, 1978
3 - 8
Wonder Woman - Season 3 Episode 8
Skateboard Wiz
Nov 24, 1978
3 - 9
Wonder Woman - Season 3 Episode 9
The Deadly Dolphin
Dec 1, 1978
3 - 10
Wonder Woman - Season 3 Episode 10
Stolen Faces
Dec 15, 1978
3 - 11
Wonder Woman - Season 3 Episode 11
Pot of Gold
Dec 22, 1978
3 - 12
Wonder Woman - Season 3 Episode 12
Gault's Brain
Dec 29, 1978
3 - 13
Wonder Woman - Season 3 Episode 13
Going, Going, Gone
Jan 12, 1979
3 - 14
Wonder Woman - Season 3 Episode 14
Spaced Out
Jan 26, 1979
3 - 15
Wonder Woman - Season 3 Episode 15
The Starships Are Coming
Feb 2, 1979
3 - 16
Wonder Woman - Season 3 Episode 16
Amazon Hot Wax
Feb 16, 1979
3 - 17
Wonder Woman - Season 3 Episode 17
The Richest Man in the World
Feb 19, 1979
3 - 18
Wonder Woman - Season 3 Episode 18
A Date with Doomsday
Mar 10, 1979
3 - 19
Wonder Woman - Season 3 Episode 19
The Girl with a Gift for Disaster
Mar 17, 1979
3 - 20
Wonder Woman - Season 3 Episode 20
The Boy Who Knew Her Secret (1)
May 28, 1979
3 - 21
Wonder Woman - Season 3 Episode 21
The Boy Who Knew Her Secret (2)
May 29, 1979
3 - 22
Wonder Woman - Season 3 Episode 22
The Man Who Could Not Die
Aug 28, 1979
3 - 23
Wonder Woman - Season 3 Episode 23
Phantom of the Roller Coaster (1)
Sep 4, 1979
3 - 24
Wonder Woman - Season 3 Episode 24
Phantom of the Roller Coaster (2)
Sep 11, 1979

Trailer / clip

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